Merge branch 'x86/xsave' into x86/core

diff --cc arch/x86/kernel/Makefile
Simple merge

diff --cc arch/x86/kernel/signal_32.c
Simple merge

diff --cc arch/x86/kernel/signal_64.c
Simple merge

diff --cc include/asm-x86/i387.h
Simple merge

diff --cc include/asm-x86/processor.h
Simple merge