PM: Eliminate CONFIG_PM_RUNTIME

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c6b6ee5..0f09f52 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -223,7 +223,7 @@
 config ARCH_SHMOBILE
 	bool
 	select ARCH_SUSPEND_POSSIBLE
-	select PM_RUNTIME
+	select PM
 
 config CPU_HAS_PMU
        depends on CPU_SH4 || CPU_SH4A