ARM: mach-at91: add support for new SoC sama7g5

Add support for new SoC sama7g5

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 8552400..be1415f 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -47,6 +47,10 @@
 	bool
 	select CPU_ARM926EJS
 
+config SAMA7G5
+	bool
+	select CPU_V7A
+
 config SAMA5D2
 	bool
 	select CPU_V7A