drivers: soc: atmel: add per soc id and version match masks

SAMA7G5 has different masks for chip ID and chip version on CIDR
register compared to previous AT91 SoCs. For this the commit adapts
the code for SAMA7G5 addition by introducing 2 new members in
struct at91_soc and fill them properly and also preparing the
parsing of proper DT binding.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/1611318097-8970-6-git-send-email-claudiu.beznea@microchip.com

drivers/soc/atmel/soc.h

@@ -16,14 +16,19 @@
 
 struct at91_soc {
 	u32 cidr_match;
+	u32 cidr_mask;
+	u32 version_mask;
 	u32 exid_match;
 	const char *name;
 	const char *family;
 };
 
-#define AT91_SOC(__cidr, __exid, __name, __family)		\
+#define AT91_SOC(__cidr, __cidr_mask, __version_mask, __exid,	\
+		 __name, __family)				\
 	{							\
 		.cidr_match = (__cidr),				\
+		.cidr_mask = (__cidr_mask),			\
+		.version_mask = (__version_mask),		\
 		.exid_match = (__exid),				\
 		.name = (__name),				\
 		.family = (__family),				\