mb/google/nissa/var/dirks: Disable TCSS D3COLD_SUPPORT

In dirks, we re-purpose a TCSS USB port into a Type-A port.
In this case, D3COLD in tcss_xhci is not supported, so we override
dirks settings. This is a W/A until we root cause why PMC is unable
to handle PM for this migrated port.

BUG=b:400809281
TEST= Confirm that when connecting only the Type-A0 port, it can
recognize USB3 speed.

Change-Id: I35ae587e02d794352ffc9d18a4c18868d23366f3
Signed-off-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87053
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>

src/mainboard/google/brya/Kconfig

@@ -1178,4 +1178,8 @@ config SKIP_RAM_ID_STRAPS
 
 	  If unsure, leave this option disabled.
 
+config D3COLD_SUPPORT
+	bool
+	default n if BOARD_GOOGLE_DIRKS
+
 endif # BOARD_GOOGLE_BRYA_COMMON