This adds the following commits from upstream:
b1a6003 tests: Add a test for overlays syntactic sugar
737b2df overlay: Add syntactic sugar version of overlays
497432f checks: Use proper format modifier for size_t
22a65c5 dtc: Bump version to v1.4.5
c575d80 Add fdtoverlay to .gitignore
b6a6f94 fdtoverlay: Sanity check blob size
8c1eb15 pylibfdt: Use Python2 explicitly
ee3d26f checks: add interrupts property check
c1e7738 checks: add gpio binding properties check
b3bbac0 checks: add phandle with arg property checks
[ sync with Linux commit: 4201d057ea91c3d6efd2db65219bc91fae413bc2 ]
Change-Id: I58c014073977530e43a5a67acf0c2e681ae27b0c
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 999a78d5cf00dfb8cd8342454933ea492e955377)