drivers: soc: atmel: move sam9x60 under its own config flag

Move SAM9X60 under its own config flag.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1575035505-6310-5-git-send-email-claudiu.beznea@microchip.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/soc/atmel/soc.c

@@ -66,8 +66,9 @@ static const struct at91_soc __initconst socs[] = {
 	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
 	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
 	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
-	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH,
-		 "sam9x60", "sam9x60"),
+#endif
+#ifdef CONFIG_SOC_SAM9X60
+	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH, "sam9x60", "sam9x60"),
 #endif
 #ifdef CONFIG_SOC_SAMA5
 	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,