mb/google/brox/lotso: Enable BT audio offload config

Enable BT audio offload of WIFI_CNVI_WIFI6E or unprovisioned
based on fw_config.

BUG=b:373510270
TEST=Build and boot to Lotso. Verify the config from serial logs.

w/o this CL -
```
[SPEW ]  -- CNVi Config --
[SPEW ]  CNVi Mode= 1
[SPEW ]  Wi-Fi Core= 1
[SPEW ]  BT Core= 1
[SPEW ]  BT Audio Offload= 0
```

w/ this CL -
```
[SPEW ]  -- CNVi Config --
[SPEW ]  CNVi Mode= 1
[SPEW ]  Wi-Fi Core= 1
[SPEW ]  BT Core= 1
[SPEW ]  BT Audio Offload= 1
```

Signed-off-by: Wentao Qin <qinwentao@huaqin.corp-partner.google.com>
Change-Id: I36f8c3fb24166c86d5fc4099fa9cde8cdecb9d49
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84768
Reviewed-by: Bob Moragues <moragues@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jian Tong <tongjian@huaqin.corp-partner.google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mainboard/google/brox/variants/lotso/variant.c b/src/mainboard/google/brox/variants/lotso/variant.c
index e8bab44b5e..066acb2878 100644
--- a/src/mainboard/google/brox/variants/lotso/variant.c
+++ b/src/mainboard/google/brox/variants/lotso/variant.c
@@ -11,6 +11,7 @@ void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
 	if (fw_config_probe(FW_CONFIG(WIFI_BT, WIFI_CNVI_WIFI6E)) || !fw_config_is_provisioned()) {
 		printk(BIOS_INFO, "CNVi bluetooth enabled by fw_config\n");
 		config->cnvi_bt_core = true;
+		config->cnvi_bt_audio_offload = true;
 	}
 }