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/configs/T1024RDB_NAND_defconfig b/configs/T1024RDB_NAND_defconfig
index 9288204..4c09744 100644
--- a/configs/T1024RDB_NAND_defconfig
+++ b/configs/T1024RDB_NAND_defconfig
@@ -9,7 +9,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="t1024rdb"
 CONFIG_SPL_TEXT_BASE=0xFFFD8000
 CONFIG_SPL_SERIAL_SUPPORT=y
-CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
+CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T1024RDB=y