soc/mediatek/mt8195: Update header version from 1.8.1 to 1.9.1

Move some structures to common folder (CB:61293), so we need to update
header version.

BUG=none
TEST=dram calibration pass

Signed-off-by: Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com>
Change-Id: Id82cbef9cb10dba71489ea96f67c329de9aadc49
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62550
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

src/soc/mediatek/mt8195/include/soc/dramc_param.h

@@ -13,7 +13,7 @@
 #include <soc/dramc_param_common.h>
 #include <soc/dramc_soc.h>
 
-#define DRAMC_PARAM_HEADER_VERSION 8
+#define DRAMC_PARAM_HEADER_VERSION 9
 
 struct sdram_params {
 	u32 rank_num;