soc: xilinx: versal-net: Add soc_xilinx_versal_net driver

Add soc_xilinx_versal_net driver to identify the family & revision of
versal-net SoC. Add Kconfig option CONFIG_SOC_XILINX_VERSAL_NET to
enable/disable this driver. To enable this driver by default, add this
config to xilinx_versal_net_virt_defconfig file. This driver will be
probed using platdata U_BOOT_DEVICE structure which is specified in
mach-versal-net/cpu.c.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Link: https://lore.kernel.org/r/613d6bcffd9070f62cf348079ed16c120f8fc56f.1668612993.git.michal.simek@amd.com
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 292dc41..acf555b 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -32,6 +32,14 @@
 	  This allows other drivers to verify the SoC familiy & revision using
 	  matching SoC attributes.
 
+config SOC_XILINX_VERSAL_NET
+	bool "Enable SoC Device ID driver for Xilinx Versal NET"
+	depends on SOC_DEVICE && ARCH_VERSAL_NET
+	help
+	  Enable this option to select SoC device id driver for Xilinx Versal NET.
+	  This allows other drivers to verify the SoC familiy & revision using
+	  matching SoC attributes.
+
 source "drivers/soc/ti/Kconfig"
 
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