ARM: at91: add sama5d4 support to sama5_defconfig

Add sama5d4 to sama5_defconfig to build kernel booting on both sama5d3 and
samad4.

Note that earlyprintk can only be working for one or the other.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/configs/sama5_defconfig

@@ -19,6 +19,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_ARCH_AT91=y
 CONFIG_SOC_SAM_V7=y
 CONFIG_SOC_SAMA5D3=y
+CONFIG_SOC_SAMA5D4=y
 CONFIG_MACH_SAMA5_DT=y
 CONFIG_AEABI=y
 # CONFIG_OABI_COMPAT is not set