[MIPS] time: Move R4000 clockevent device code to separate configurable file

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 95a356e..a3afa39 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -8,6 +8,8 @@
 		   ptrace.o reset.o semaphore.o setup.o signal.o syscall.o \
 		   time.o topology.o traps.o unaligned.o
 
+obj-$(CONFIG_CEVT_R4K)		+= cevt-r4k.o
+
 binfmt_irix-objs	:= irixelf.o irixinv.o irixioctl.o irixsig.o	\
 			   irix5sys.o sysirix.o