common: build f2fs for all targets

Change-Id: I76ae7daefc64ba1b694495064b7f9d590d6867da
diff --git a/config/common.mk b/config/common.mk
index ae21644..3c3e59f 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -176,6 +176,9 @@
     mount.exfat \
     fsck.exfat \
     mkfs.exfat \
+    mkfs.f2fs \
+    fsck.f2fs \
+    fibmap.f2fs \
     ntfsfix \
     ntfs-3g \
     gdbserver \