[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/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig
index abbd0bb..6b293ce 100644
--- a/arch/mips/pmc-sierra/Kconfig
+++ b/arch/mips/pmc-sierra/Kconfig
@@ -4,11 +4,13 @@
 
 config PMC_MSP4200_EVAL
 	bool "PMC-Sierra MSP4200 Eval Board"
+	select CEVT_R4K
 	select IRQ_MSP_SLP
 	select HW_HAS_PCI
 
 config PMC_MSP4200_GW
 	bool "PMC-Sierra MSP4200 VoIP Gateway"
+	select CEVT_R4K
 	select IRQ_MSP_SLP
 	select HW_HAS_PCI