arch/mcimx7_m4: Add i.MX7 Solo Kconfig SoC partnumber define

Adds the proper Kconfig entries for the i.MX7S partnumber presented
on WaRP7 board.

Signed-off-by: Diego Sueiro <[email protected]>

Author: diegosueiro

arch/arm/soc/nxp_imx/mcimx7_m4/Kconfig.soc

@@ -22,9 +22,13 @@ if SOC_MCIMX7_M4
 config SOC_PART_NUMBER_MCIMX7D5EVM10SC
 	bool
 
+config SOC_PART_NUMBER_MCIMX7S3DVK08SA
+	bool
+
 config SOC_PART_NUMBER_IMX7_M4
 	string
 	default "MCIMX7D5EVM10SC" if SOC_PART_NUMBER_MCIMX7D5EVM10SC
+	default "MCIMX7S3DVK08SA" if SOC_PART_NUMBER_MCIMX7S3DVK08SA
 	help
 	  This string holds the full part number of the SoC. It is a hidden option
 	  that you should not set directly. The part number selection choice defines