remove grub-efi-arm64 to the arm64 OS snap as it breaks uboot

debian/changelog

@@ -1,6 +1,7 @@
 livecd-rootfs (2.388) UNRELEASED; urgency=medium
 
   * add support for dragonboard kernel snap
+  * remove  grub-efi-arm64 to the arm64 OS snap as it breaks uboot
 
  -- Oliver Grawert <ogra@ubuntu.com>  Tue, 15 Mar 2016 13:21:25 +0100
 

live-build/auto/config

@@ -424,7 +424,7 @@ case $PROJECT in
 					add_package install flash-kernel u-boot-tools
 					;;
 				arm64)
-					add_package install u-boot-tools grub-efi-arm64
+					add_package install u-boot-tools
                                         ;;
 			esac
 			OPTS="${OPTS:+$OPTS }--linux-packages=none --initramfs=none"