mpc85xx, socrates: suppress unknown flash warning

suppress warning:
Flash: ## Unknown flash on Bank 1 - Size = 0x00000000 = 0 MB

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/include/configs/socrates.h b/include/configs/socrates.h
index c7c30d3..4192148 100644
--- a/include/configs/socrates.h
+++ b/include/configs/socrates.h
@@ -96,6 +96,7 @@
  */
 #define CONFIG_SYS_LBC_CACHE_BASE	0xf0000000	/* Localbus cacheable	 */
 
+#define CONFIG_SYS_FLASH_QUIET_TEST
 #define CONFIG_SYS_FLASH0		0xFE000000
 #define CONFIG_SYS_FLASH1		0xFC000000
 #define CONFIG_SYS_FLASH_BANKS_LIST	{ CONFIG_SYS_FLASH1, CONFIG_SYS_FLASH0 }