mb/google/nissa/var/anraggar: Force audio mute to avoid screen flick

Panel CSOT MNB601LS1-3 will flicker once during enter Chrome login
screen, it is because it inserts 12 blank frames if it receives the
unmute in VB-ID.

Always override the mute in VB-ID to avoid Tcon EC detected the
audiomute_flag change.

BUG:b=357764688
BRANCH=firmware-nissa-15217.B
TEST:Verfied on Anraggar and cannot reproduce the issue

Change-Id: I711dfd0803440e4b04f02849fed529c3872e023d
Signed-off-by: Simon Yang <simon1.yang@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84098
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

0 files changed, 0 insertions, 0 deletions