imx: mx6slevk: use SPI_BOOT

Use SPI_BOOT instead of SYS_BOOT_SPINOR.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>

configs/mx6slevk_spinor_defconfig

 CONFIG_ARM=y
 CONFIG_ARCH_MX6=y
 CONFIG_TARGET_MX6SLEVK=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL,SYS_BOOT_SPINOR"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL"
+CONFIG_SPI_BOOT=y
 CONFIG_BOOTDELAY=3
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_HUSH_PARSER=y

include/configs/mx6slevk.h

@@ -145,7 +145,7 @@
 /* Environment organization */
 #define CONFIG_ENV_SIZE			SZ_8K
 
-#if defined CONFIG_SYS_BOOT_SPINOR
+#if defined CONFIG_SPI_BOOT
 #define CONFIG_ENV_IS_IN_SPI_FLASH
 #define CONFIG_ENV_OFFSET               (768 * 1024)
 #define CONFIG_ENV_SECT_SIZE            (64 * 1024)