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/configs/orangepi_zero2_defconfig b/configs/orangepi_zero2_defconfig
index 72574a8..5334ff7 100644
--- a/configs/orangepi_zero2_defconfig
+++ b/configs/orangepi_zero2_defconfig
@@ -10,6 +10,6 @@
 CONFIG_MMC0_CD_PIN="PF6"
 CONFIG_R_I2C_ENABLE=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
-CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_SPL_I2C=y
 CONFIG_PHY_REALTEK=y
 CONFIG_SUN8I_EMAC=y