Change bd/gd memsize/ram_size to be phys_size_t.

Currently, both are defined as an unsigned long, but
should be phys_size_t. This should result in no real change,
since phys_size_t is currently an unsigned long for all the
default configs.  Also add print_lnum to cmd_bdinfo to deal
with the potentially wider memsize.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>

include/asm-mips/global_data.h

@@ -41,7 +41,7 @@ typedef	struct	global_data {
 	unsigned long	flags;
 	unsigned long	baudrate;
 	unsigned long	have_console;	/* serial_init() was called */
-	unsigned long	ram_size;	/* RAM size */
+	phys_size_t	ram_size;	/* RAM size */
 	unsigned long	reloc_off;	/* Relocation Offset */
 	unsigned long	env_addr;	/* Address  of Environment struct */
 	unsigned long	env_valid;	/* Checksum of Environment valid? */

include/asm-mips/u-boot.h

@@ -38,7 +38,7 @@ typedef struct bd_info {
 	unsigned long	bi_arch_number;	/* unique id for this board */
 	unsigned long	bi_boot_params;	/* where this board expects params */
 	unsigned long	bi_memstart;	/* start of DRAM memory */
-	unsigned long	bi_memsize;	/* size	 of DRAM memory in bytes */
+	phys_size_t	bi_memsize;	/* size	 of DRAM memory in bytes */
 	unsigned long	bi_flashstart;	/* start of FLASH memory */
 	unsigned long	bi_flashsize;	/* size  of FLASH memory */
 	unsigned long	bi_flashoffset;	/* reserved area for startup monitor */