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/include/configs/imx8mq_phanbell.h b/include/configs/imx8mq_phanbell.h
index 70d2da1..8038abc 100644
--- a/include/configs/imx8mq_phanbell.h
+++ b/include/configs/imx8mq_phanbell.h
@@ -19,7 +19,7 @@
 #define CONFIG_SPL_WATCHDOG
 #define CONFIG_SPL_DRIVERS_MISC
 #define CONFIG_SPL_POWER
-#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_I2C
 #define CONFIG_SPL_LDSCRIPT		"arch/arm/cpu/armv8/u-boot-spl.lds"
 #define CONFIG_SPL_STACK		0x187FF0
 #define CONFIG_SPL_LIBCOMMON_SUPPORT