kernel: update kernel 4.4 to version 4.4.47

kernel: update kernel 4.4 to version 4.4.47

Refresh patches for all targets that support kernel 4.4.
Compile-tested on all targets that use kernel 4.4 and aren't marked
broken, except arc770 and arch38 due to broken toolchain.

Runtime-tested on ar71xx, octeon, ramips and x86/64.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
(cherry picked from commit d2c4041f0266cc93447998ddd67c7d6b6a4c2ee3)

Conflicts:
	include/kernel-version.mk
	target/linux/ramips/patches-4.4/997-ralink-Introduce-fw_passed_dtb-to-arch-mips-ralink.patch