ARM: configs: sama7: Enable CMA_DEBUGFS

Enable Contigous Memory Allocator in Debugfs for debugging purpose to align
defconfig with sama5 and at91 defconfigs.

Signed-off-by: Andrei Simion <andrei.simion@microchip.com>

Author: Andrei Simion

arch/arm/configs/sama7_defconfig

@@ -46,6 +46,7 @@ CONFIG_PARTITION_ADVANCED=y
 CONFIG_SLAB=y
 # CONFIG_COMPACTION is not set
 CONFIG_CMA=y
+CONFIG_CMA_DEBUGFS=y
 # CONFIG_VM_EVENT_COUNTERS is not set
 CONFIG_NET=y
 CONFIG_PACKET=y