arm: enable distro boot for bananapi-r2

This patch enables distro boot for the bananapi-r2, based on
a MediaTek mt7623n.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
diff --git a/configs/mt7623n_bpir2_defconfig b/configs/mt7623n_bpir2_defconfig
index 07ddade..fe28f37 100644
--- a/configs/mt7623n_bpir2_defconfig
+++ b/configs/mt7623n_bpir2_defconfig
@@ -7,6 +7,7 @@
 CONFIG_ENV_OFFSET=0x100000
 CONFIG_TARGET_MT7623=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_BOOTDELAY=3
@@ -56,4 +57,4 @@
 CONFIG_MTK_TIMER=y
 CONFIG_WDT_MTK=y
 CONFIG_LZMA=y
-# CONFIG_EFI_LOADER is not set
+CONFIG_EFI_LOADER=y