blackfin: Disable commands to reduce l1 ram requirement

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>

include/configs/bf506f-ezkit.h

@@ -56,6 +56,7 @@
 /*
  * Flash Settings
  */
+
 #define CONFIG_FLASH_CFI_DRIVER
 #define CONFIG_SYS_FLASH_BASE		0x20000000
 #define CONFIG_SYS_FLASH_CFI
@@ -63,7 +64,9 @@
 #define CONFIG_SYS_MAX_FLASH_SECT	71
 #define CONFIG_CMD_FLASH
 #define CONFIG_MONITOR_IS_IN_RAM
-
+/*
+#define CONFIG_SYS_NO_FLASH
+*/
 
 /*
  * SPI Settings
@@ -71,11 +74,12 @@
 #define CONFIG_BFIN_SPI
 #define CONFIG_ENV_SPI_MAX_HZ	30000000
 #define CONFIG_SF_DEFAULT_SPEED	30000000
+/*
 #define CONFIG_SPI_FLASH
 #define CONFIG_SPI_FLASH_STMICRO
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_SPI
-
+*/
 
 /*
  * Env Storage Settings