mb/google/brya/var/marasov: Change FSP board type to Type3

Change FSP board type to Type3.

BUG=b:260565911
BRANCH=firmware-brya-14505.B
TEST=emerge-brya coreboot chromeos-bootimage
     check MRC log "Maximum requested frequency" is 4800

Signed-off-by: Frank Chu <Frank_Chu@pegatron.corp-partner.google.com>
Change-Id: I69365bc726b4faac4cedb94cc7b08baa06056c1d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70439
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Frank Chu <frank_chu@pegatron.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/variants/marasov/memory.c

@@ -67,7 +67,7 @@ static const struct mb_cfg baseboard_memcfg = {
 
 	.ect = 1, /* Early Command Training */
 
-	.UserBd = BOARD_TYPE_MOBILE,
+	.UserBd = BOARD_TYPE_ULT_ULX,
 };
 
 const struct mb_cfg *variant_memory_params(void)