um: merge delay_{32,64}.c

Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile
index ffe1008..8fb5840 100644
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -8,7 +8,7 @@
 	BITS := 64
 endif
 
-obj-y = bug.o bugs_$(BITS).o delay_$(BITS).o fault.o ksyms.o ldt.o \
+obj-y = bug.o bugs_$(BITS).o delay.o fault.o ksyms.o ldt.o \
 	ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal.o \
 	stub_$(BITS).o stub_segv.o syscalls_$(BITS).o \
 	sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o \