Merge x86/urgent into x86/fpu

Pick up dependent changes which either went mainline (x86/urgent is
based on -rc7 and that contains them) as urgent fixes and the current
x86/urgent branch which contains two more urgent fixes, so that the
bigger FPU rework can base off ontop.

Signed-off-by: Borislav Petkov <bp@suse.de>

diff --cc arch/x86/kernel/fpu/signal.c
Simple merge

diff --cc arch/x86/kernel/fpu/xstate.c
Simple merge

diff --cc include/linux/sched/signal.h
Simple merge