Enable FULL_TREBLE on hikey/hikey960

This is basically the current state of the rest of the
FULL_TREBLE enablement bits for both hikey/hikey960

This patch also requires kernels that are rebuilt to include the
DTS fstab changes seen here:
https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/treble

Credit for this patch goes to Vishal Bhoj <vishal.bhoj@linaro.org>
who basically was the original author and magician
who got things working.

I've only refactored and split up his changes to help
with the submissions.

Change-Id: Iab0f5fc93bdfd1b86c98aa1d54974fde33514063
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/hikey/fstab.hikey-3.18 b/hikey/fstab.hikey-3.18
index 6e184c5..05f427f 100644
--- a/hikey/fstab.hikey-3.18
+++ b/hikey/fstab.hikey-3.18
@@ -3,9 +3,9 @@
 # The filesystem that contains the filesystem checker binary (typically /system) cannot
 # specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
 
-/dev/block/platform/f723d000.dwmmc0/by-name/system      /system             ext4      ro                                                           wait
-/dev/block/platform/f723d000.dwmmc0/by-name/system      /system             squashfs  ro                                                           wait
-/dev/block/platform/f723d000.dwmmc0/by-name/vendor      /vendor             ext4      ro                                                           wait
+#/dev/block/platform/f723d000.dwmmc0/by-name/system      /system             ext4      ro                                                           wait
+#/dev/block/platform/f723d000.dwmmc0/by-name/system      /system             squashfs  ro                                                           wait
+#/dev/block/platform/f723d000.dwmmc0/by-name/vendor      /vendor             ext4      ro                                                           wait
 /dev/block/platform/f723d000.dwmmc0/by-name/cache       /cache              ext4      discard,noatime,noauto_da_alloc,data=ordered,user_xattr,barrier=1    wait
 /dev/block/platform/f723d000.dwmmc0/by-name/userdata    /data               f2fs      discard,noatime,nosuid,nodev                                 wait,check,fileencryption=software,quota
 /dev/block/platform/f723d000.dwmmc0/by-name/userdata    /data               ext4      discard,noatime,noauto_da_alloc,data=ordered,user_xattr,barrier=1    wait,formattable