mb/google/nissa/var/anraggar: Enable BT audio offload

This patch enables Cnvi BT Audio Offload feature and also
configures the virtual GPIO for CNVi Bluetooth I2S pads.

BUG=b:303157827
TEST=Build and boot to anraggar. 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
[SPEW ]  Pin Muxing
```

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

Change-Id: I9e6731c8ceaad6ee58b525d4246fa769bfe1b0c7
Signed-off-by: Jianeng Ceng <cengjianeng@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80001
Reviewed-by: Weimin Wu <wuweimin@huaqin.corp-partner.google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions