ARM: dts: tacoma: Fix node vs reg mismatch for flash memory

The mismatch lead to a miscalculation of regions in another patch, and
shouldn't be mismatched anyway, so make them consistent.

Fixes: 575640201e66 ("ARM: dts: aspeed: tacoma: Use 64MB for firmware memory")
Signed-off-by: Andrew Jeffery <[e-mail]>
Reviewed-by: Joel Stanley <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Joel Stanley <[e-mail]>

arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts

···
 		#size-cells = <1>;
 		ranges;
 
-		flash_memory: region@ba000000 {
+		flash_memory: region@b8000000 {
 			no-map;
 			reg = <0xb8000000 0x4000000>; /* 64M */
 		};