git: upgrade to 2.2.0

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
make: upgrade to 4.1

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
libpng 1.6.13: fix build for aarch64

The configure override was too restrictive, it needed both 'arm' and
'neon' to trigger, which breaks on aarch64. Since TUNE_FEATURES is the
only qualifier that matters, drop the 'arm' override.

Buildtested for 'genericarmv8' and 'qemux86' machines.

[RP: Added class-target override to avoid failures for libpng-native]
Signed-off-by: Koen Kooi <koen.kooi@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
init-ifupdown: Add missing script for qemuarm64

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>