MIPS: Kconfig: Add missing MIPS_CPS dependencies to PM and cpuidle

The MIPS_CPS_PM and MIPS_CPS_CPUIDLE implementation should depend
on the MIPS_CPS symbol to avoid the following build problem

arch/mips/kernel/pm-cps.c: In function 'cps_pm_enter_state':
arch/mips/kernel/pm-cps.c:164:26: error: 'cpu_coherent_mask' undeclared
(first use in this function)
cpumask_clear_cpu(cpu, &cpu_coherent_mask);
                            ^
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/7798/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ad6badb..f43aa53 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2066,6 +2066,7 @@
 	  support is unavailable.
 
 config MIPS_CPS_PM
+	depends on MIPS_CPS
 	select MIPS_CPC
 	bool
 
diff --git a/drivers/cpuidle/Kconfig.mips b/drivers/cpuidle/Kconfig.mips
index 0e70ee2..4102be0 100644
--- a/drivers/cpuidle/Kconfig.mips
+++ b/drivers/cpuidle/Kconfig.mips
@@ -3,7 +3,7 @@
 #
 config MIPS_CPS_CPUIDLE
 	bool "CPU Idle driver for MIPS CPS platforms"
-	depends on CPU_IDLE
+	depends on CPU_IDLE && MIPS_CPS
 	depends on SYS_SUPPORTS_MIPS_CPS
 	select ARCH_NEEDS_CPU_IDLE_COUPLED if MIPS_MT
 	select GENERIC_CLOCKEVENTS_BROADCAST if SMP