soc/intel: Deprecate SoC-specific global reset status configs

This change removes the SoC-specific `FSP_STATUS_GLOBAL_RESET_REQUIRED_X`
Kconfigs, as they are no longer necessary for handling FSP global reset
requests.

Previously, these Kconfigs were used to select a specific 32-bit reset
status code. However, with the introduction of FSP 2.4 and 64-bit
interfaces, the global reset status code can now vary between
architectures.

To address this, the FSP driver now sets the `FSP_STATUS_GLOBAL_RESET`
config to a common default value (depending upon most commonly used
global reset status code) based on the interface:
- 0x40000003 for 32-bit FSP interfaces
- 0x4000000000000003 for 64-bit FSP interfaces

This default can be overridden if an FSP implementation uses a
different status code (for example: Apollo Lake selects different FSP
reset status code as 0x40000005).

By removing the SoC-specific configurations, this change simplifies
global reset handling and ensures compatibility across different FSP
versions and platforms.

Below table shows the relationship between Platform, FSP and FSP Global
Reset Status:
+-----------------+--------------+-------------------------+
| Platform        |  FSP         |    Global Reset Status  |
+-----------------+--------------+-------------------------+
| Alder Lake      |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Apollo Lake     |  32-bit      |    0x40000005           |
+-----------------+--------------+-------------------------+
| Cannon Lake     |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Elkhart Lake    |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Jasper Lake     |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Meteor Lake     |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Sky Lake        |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Tiger Lake      |  32-bit      |    0x40000003           |
+-----------------+--------------+-------------------------+
| Panther Lake    |  64-bit      |    0x4000000000000003   |
+-----------------+--------------+-------------------------+

BUG=b:347669091
TEST=Verified FSP requested global reset functionality on google/rex0
(32-bit) and google/rex64 (64-bit) platforms.

w/ 32-bit FSP:

```
(Wdt) AllowKnownReset
[FspResetSystem2] FSP Reset Initiated
FSP returning control to Bootloader with reset required return status
40000003
FSPS, status=0x40000003
FSP: handling reset type, status=0x40000003
GLOBAL RESET!
global_reset() called!
HECI: Global Reset(Type:1) Command
```

w/ 64-bit FSP:

```
(Wdt) AllowKnownReset
[FspResetSystem2] FSP Reset Initiated
FSP returning control to Bootloader with reset required return status 3
FSPS, status=0x4000000000000003
FSP: handling reset type, status=0x4000000000000003
GLOBAL RESET!
global_reset() called!
HECI: Global Reset(Type:1) Command
```

Change-Id: I32bdbf7ea6afa7d5e5f91ea96d887719d26a593f
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84572
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/src/soc/intel/elkhartlake/Kconfig b/src/soc/intel/elkhartlake/Kconfig
index 815a7a1137..ff3c82f6ff 100644
--- a/src/soc/intel/elkhartlake/Kconfig
+++ b/src/soc/intel/elkhartlake/Kconfig
@@ -13,7 +13,6 @@ config SOC_INTEL_ELKHARTLAKE
 	select EDK2_CPU_TIMER_LIB if PAYLOAD_EDK2
 	select FSP_COMPRESS_FSP_S_LZ4
 	select FSP_M_XIP
-	select FSP_STATUS_GLOBAL_RESET_REQUIRED_3
 	select GENERIC_GPIO_LIB
 	select HAVE_FSP_GOP
 	select HAVE_SMI_HANDLER