Rename DRIVERS_MISC_SUPPORT to DRIVERS_MISC

Rename these options so that CONFIG_IS_ENABLED can be used with them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/ls1046a_common.h b/include/configs/ls1046a_common.h
index 4618244..6d927b1 100644
--- a/include/configs/ls1046a_common.h
+++ b/include/configs/ls1046a_common.h
@@ -111,7 +111,7 @@
 #define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
 
 #define CONFIG_SPL_NAND_SUPPORT
-#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
+#define CONFIG_SPL_DRIVERS_MISC
 #define CONFIG_SPL_MAX_SIZE		0x17000		/* 90 KiB */
 #define CONFIG_SPL_STACK		0x1001f000
 #define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_SYS_TEXT_BASE