i2c: Added Kconfig support for CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET

This patch added Kconfig support for CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET
and enabled it in respective defconfig.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynqmp_zcu102_revA_defconfig b/configs/xilinx_zynqmp_zcu102_revA_defconfig
index b6e8a0e..9176e8e 100644
--- a/configs/xilinx_zynqmp_zcu102_revA_defconfig
+++ b/configs/xilinx_zynqmp_zcu102_revA_defconfig
@@ -55,6 +55,7 @@
 CONFIG_CMD_PCA953X=y
 CONFIG_SYS_I2C_ZYNQ=y
 CONFIG_MISC=y
+CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET=0x20
 CONFIG_DM_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ZYNQ=y