mb/google/nissa/var/rull: when using pcie wifi7, turn off CNVI BT

mb/google/nissa/var/rull: when using pcie wifi7, turn off CNVI BT

When we use PCIE wifi7, CNVI BT and BT offload should be turned off.

BUG=b:378053901
BRANCH=None
TEST=emerge-nissa coreboot chromeos-bootimage

Change-Id: I0adc446220051da59560c9a59d6f334b3a11ac7b
Signed-off-by: Rui Zhou <zhourui@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85044
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kun Liu <liukun11@huaqin.corp-partner.google.com>
Reviewed-by: Eric Lai <ericllai@google.com>