ti_armv7_common.h: Adjust malloc pool size in all cases.

Previously we had been adjusting CONFIG_SYS_MALLOC_LEN based on if
CONFIG_DFU_MMC has been set or not.  However, for quite some time this
has not been the case as we often include <configs/ti_armv7_common.h>
prior to setting CONFIG_DFU_MMC so we would always use 16MiB and then
not have enough room for to DFU files.  Given the amount of memory we
always have, setting a minimum size of 32MiB for malloc is reasonable.
However, in the SPL case not only do we not need that much we start
running into overlap problems and then will fail to boot.  Since we
don't need 16MiB in the SPL case, bring this down to 8MiB.

Signed-off-by: Tom Rini <trini@konsulko.com>

include/configs/ti_armv7_common.h

@@ -146,11 +146,7 @@
  * we are on so we do not need to rely on the command prompt.  We set a
  * console baudrate of 115200 and use the default baud rate table.
  */
-#ifdef CONFIG_DFU_MMC
-#define CONFIG_SYS_MALLOC_LEN	((16 << 20) + CONFIG_SYS_DFU_DATA_BUF_SIZE)
-#else
-#define CONFIG_SYS_MALLOC_LEN	(16 << 20)
-#endif
+#define CONFIG_SYS_MALLOC_LEN		SZ_32M
 #define CONFIG_SYS_CONSOLE_INFO_QUIET
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_ENV_VARS_UBOOT_CONFIG	/* Strongly encouraged */
@@ -230,7 +226,7 @@
 #ifndef CONFIG_SYS_SPL_MALLOC_START
 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SPL_BSS_START_ADDR + \
 					 CONFIG_SPL_BSS_MAX_SIZE)
-#define CONFIG_SYS_SPL_MALLOC_SIZE	CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SYS_SPL_MALLOC_SIZE	SZ_8M
 #endif
 #ifndef CONFIG_SPL_MAX_SIZE
 #define CONFIG_SPL_MAX_SIZE		(SRAM_SCRATCH_SPACE_ADDR - \