Added support for SNES autodetection of 256 Kb SRAM in v2proto_hirom

host/scripts/snes/v2proto_hirom.lua

@@ -64,6 +64,7 @@ local ram_size_tbl = {
     [0x01] = "16 kilobits",
     [0x02] = "32 kilobits",
     [0x03] = "64 kilobits",
+    [0x05] = "256 kilobits"
 }
 
 -- Translates ram size in header to KBytes.
@@ -72,6 +73,7 @@ local ram_size_kb_tbl = {
     [0x01] = 2,
     [0x02] = 4,
     [0x03] = 8,
+    [0x05] = 32
 }
 
 local destination_code = {