i2c: Rename SPL/TPL_I2C_SUPPORT to I2C

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

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index cd69664..0863965 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -16,7 +16,7 @@
 	imply SPL_FS_EXT4
 	imply SPL_FS_FAT
 	imply SPL_GPIO
-	imply SPL_I2C_SUPPORT
+	imply SPL_I2C
 	imply SPL_LIBCOMMON_SUPPORT
 	imply SPL_LIBDISK_SUPPORT
 	imply SPL_LIBGENERIC_SUPPORT
@@ -38,7 +38,7 @@
 	imply SPL_FS_EXT4
 	imply SPL_FS_FAT
 	imply SPL_GPIO
-	imply SPL_I2C_SUPPORT
+	imply SPL_I2C
 	imply SPL_LIBCOMMON_SUPPORT
 	imply SPL_LIBDISK_SUPPORT
 	imply SPL_LIBGENERIC_SUPPORT
@@ -62,7 +62,7 @@
 	imply SPL_FS_EXT4
 	imply SPL_FS_FAT
 	imply SPL_GPIO
-	imply SPL_I2C_SUPPORT
+	imply SPL_I2C
 	imply SPL_LIBCOMMON_SUPPORT
 	imply SPL_LIBDISK_SUPPORT
 	imply SPL_LIBGENERIC_SUPPORT