Fix alignment-related crashes

asm/m4a_1.s

@@ -1909,6 +1909,7 @@ _081DDD90:
 	.align 2, 0 @ Don't pad with nop.
 
     .bss
+    .align 3
 gUnknown_030007B8:
     .space 0x40
     .size gUnknown_030007B8, .-gUnknown_030007B8

data/battle_ai_scripts.s

@@ -14,6 +14,7 @@
 @ To make adding these improvements easier they are commented and tagged with "Improvement in Emerald"
 @ Emerald also adds a few entirely new AI commands (mostly to expand Double Battle AI), which are not included
 
+	.align 2
 gBattleAI_ScriptsTable:: @ 81D9BF4
 	.4byte AI_CheckBadMove
 	.4byte AI_CheckViability

data/battle_anim_scripts.s

@@ -44,6 +44,7 @@ gMovesWithQuietBGM:: @ 81C68EC
 	.2byte MOVE_GRASS_WHISTLE
 	.2byte 0xFFFF
 
+	.align 2
 gBattleAnims_Moves::
 	.4byte Move_NONE
 	.4byte Move_POUND

ld_script_modern.txt

@@ -13,6 +13,7 @@ SECTIONS {
 
         *(ewram_data);
         /* pokemon_summary_screen.o */
+        . = ALIGN(4);
         gUnknown_203B140 = .; . += 0x4;
         gUnknown_203B144 = .; . += 0x4;
         gUnknown_203B148 = .; . += 0x10;