MIPS: Loongson1B: Modify DEFAULT_MEMSIZE

This patch changes DEFAULT_MEMSIZE to 64MB
which is the memory size of latest EVB.
Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13856/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mach-loongson32/loongson1.h

@@ -13,7 +13,7 @@
 #define __ASM_MACH_LOONGSON32_LOONGSON1_H
 
 #if defined(CONFIG_LOONGSON1_LS1B)
-#define DEFAULT_MEMSIZE			256	/* If no memsize provided */
+#define DEFAULT_MEMSIZE			64	/* If no memsize provided */
 #elif defined(CONFIG_LOONGSON1_LS1C)
 #define DEFAULT_MEMSIZE			32
 #endif