src: Match array format in function declarations and definitions

gcc 11.1 complains when we're passing a type* into a function that was
declared to get a type[], even if the ABI has identical parameter
passing for both.

To prepare for newer compilers, adapt to this added constraint.

Change-Id: I5a1b3824a85a178431177620c4c0d5fddc993b4f
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54094
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/vendorcode/mediatek/mt8192/dramc/dramc_top.c

@@ -475,7 +475,7 @@ int get_dram_freq_cnt(void)
 #if (FOR_DV_SIMULATION_USED==0)
 #if !__FLASH_TOOL_DA__ && !__ETT__
 
-void get_dram_rank_size(u64 dram_rank_size[DRAMC_MAX_RK])
+void get_dram_rank_size(u64 dram_rank_size[])
 {
 #ifdef COMBO_MCP
 	int index, rank_nr, i;