Label map-related symbols

asm/code_0807B9B8.s

@@ -286,9 +286,9 @@ sub_0807BBE4: @ 0x0807BBE4
 	mov r6, sb
 	mov r5, r8
 	push {r5, r6, r7}
-	ldr r0, _0807BC28 @ =gUnk_0202AEB4
+	ldr r0, _0807BC28 @ =gMetatileTypesBottom
 	mov sl, r0
-	ldr r0, _0807BC2C @ =gUnk_02010654
+	ldr r0, _0807BC2C @ =gMetatileTypesTop
 	mov sb, r0
 	ldr r5, _0807BC30 @ =0xFFFFB000
 	add r5, sl
@@ -316,8 +316,8 @@ _0807BC14:
 	add r0, ip
 	b _0807BC4C
 	.align 2, 0
-_0807BC28: .4byte gUnk_0202AEB4
-_0807BC2C: .4byte gUnk_02010654
+_0807BC28: .4byte gMetatileTypesBottom
+_0807BC2C: .4byte gMetatileTypesTop
 _0807BC30: .4byte 0xFFFFB000
 _0807BC34: .4byte 0xFFFFD000
 _0807BC38: .4byte 0x00003FFF
@@ -815,7 +815,7 @@ sub_0807BFD0: @ 0x0807BFD0
 	bl sub_0801B170
 	bl sub_0807BFA8
 	ldr r7, _0807C0B8 @ =0x0000FFFF
-	ldr r6, _0807C0BC @ =gUnk_0202AEB4
+	ldr r6, _0807C0BC @ =gMetatileTypesBottom
 	movs r0, #0x80
 	lsls r0, r0, #5
 	mov r8, r0
@@ -825,7 +825,7 @@ sub_0807BFD0: @ 0x0807BFD0
 	bl _DmaFill16
 	movs r5, #0
 	strh r5, [r6]
-	ldr r4, _0807C0C0 @ =gUnk_02010654
+	ldr r4, _0807C0C0 @ =gMetatileTypesTop
 	adds r0, r7, #0
 	adds r1, r4, #0
 	mov r2, r8
@@ -894,7 +894,7 @@ _0807C078:
 	ble _0807C066
 	movs r2, #0x80
 	lsls r2, r2, #5
-	ldr r5, _0807C0C0 @ =gUnk_02010654
+	ldr r5, _0807C0C0 @ =gMetatileTypesTop
 	adds r6, r5, r2
 	ldr r4, _0807C0B8 @ =0x0000FFFF
 	adds r0, r4, #0
@@ -922,8 +922,8 @@ _0807C0A8:
 	pop {r4, r5, r6, r7, pc}
 	.align 2, 0
 _0807C0B8: .4byte 0x0000FFFF
-_0807C0BC: .4byte gUnk_0202AEB4
-_0807C0C0: .4byte gUnk_02010654
+_0807C0BC: .4byte gMetatileTypesBottom
+_0807C0C0: .4byte gMetatileTypesTop
 _0807C0C4: .4byte gRoomControls
 _0807C0C8: .4byte gArea
 _0807C0CC: .4byte 0x0000085C