Rename SPL_POWER_SUPPORT to SPL_POWER

Rename this option so that CONFIG_IS_ENABLED can be used with it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/arch/arm/mach-omap2/am33xx/Kconfig b/arch/arm/mach-omap2/am33xx/Kconfig
index 88cb957..e19dbbb 100644
--- a/arch/arm/mach-omap2/am33xx/Kconfig
+++ b/arch/arm/mach-omap2/am33xx/Kconfig
@@ -49,7 +49,7 @@
 	imply SPL_MMC_SUPPORT
 	imply SPL_NAND_SUPPORT
 	imply SPL_OF_LIBFDT
-	imply SPL_POWER_SUPPORT
+	imply SPL_POWER
 	imply SPL_SEPARATE_BSS
 	imply SPL_SERIAL_SUPPORT
 	imply SPL_SYS_MALLOC_SIMPLE
@@ -232,7 +232,7 @@
 	imply SPL_LIBGENERIC_SUPPORT
 	imply SPL_MMC_SUPPORT
 	imply SPL_NAND_SUPPORT
-	imply SPL_POWER_SUPPORT
+	imply SPL_POWER
 	imply SPL_SERIAL_SUPPORT
 	imply SPL_WATCHDOG_SUPPORT
 	imply SPL_YMODEM_SUPPORT