Merge 4.4.142 into android-4.4

Changes in 4.4.142
	Kbuild: fix # escaping in .cmd files for future Make
	x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6
	perf tools: Move syscall number fallbacks from perf-sys.h to tools/arch/x86/include/asm/
	Linux 4.4.142

Change-Id: If45535d0aeb1ad6f7239d3bc15aa4d3d60754da7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>