configs: sama7g5: enable CONFIG_CPU

Enable CONFIG_CPU.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
diff --git a/configs/sama7g5ek_mmc1_defconfig b/configs/sama7g5ek_mmc1_defconfig
index d43d07d..936d9cd 100644
--- a/configs/sama7g5ek_mmc1_defconfig
+++ b/configs/sama7g5ek_mmc1_defconfig
@@ -42,6 +42,7 @@
 CONFIG_AT91_UTMI=y
 CONFIG_AT91_GENERIC_CLK=y
 CONFIG_AT91_SAM9X60_PLL=y
+CONFIG_CPU=y
 CONFIG_DM_GPIO=y
 CONFIG_ATMEL_PIO4=y
 CONFIG_DM_I2C=y