cris: Wire up asm-generic/xor.h

crypto/xor.c:25:21: fatal error: asm/xor.h: No such file or directory
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

arch/cris/include/asm/Kbuild

@@ -9,3 +9,4 @@ generic-y += kvm_para.h
 generic-y += linkage.h
 generic-y += module.h
 generic-y += trace_clock.h
+generic-y += xor.h