efi: Add kernel param efi=noruntime

noefi kernel param means actually disabling efi runtime, Per suggestion
from Leif Lindholm efi=noruntime should be better. But since noefi is
already used in X86 thus just adding another param efi=noruntime for
same purpose.

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>

diff --cc Documentation/kernel-parameters.txt
Simple merge

diff --cc arch/x86/platform/efi/efi.c
Simple merge

diff --cc drivers/firmware/efi/efi.c
Simple merge