um: required-features.h is there only to shadow x86 one...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/include/asm/required-features.h b/arch/x86/um/asm/required-features.h
similarity index 100%
rename from arch/um/include/asm/required-features.h
rename to arch/x86/um/asm/required-features.h