Only EC will use field "PANEL_PWRSEQ_EC_CONTROL".
Add this field in coreboot for align fw_config settings.
BUG=b:314245238
TEST=emerge coreboot pass
Change-Id: Icecb44a338ddc28027e362332c6a69cc9fd268d5
Signed-off-by: Tyler Wang <tyler.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79570
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: YH Lin <yueherngl@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>