timers: Provide generic Kconfig switches

We really don't want all the arch code defining stuff
over and over.

[ anna-maria: Added missing GENERIC_CMOS_UPDATE switch ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/1337529587.3208.2.camel@dionysosAcked-by: Sam Ravnborg <sam@ravnborg.org>

kernel/time/Kconfig

@@ -33,3 +33,38 @@ config GENERIC_CLOCKEVENTS_BUILD
 
 config GENERIC_CLOCKEVENTS_MIN_ADJUST
 	bool
+
+# Options selectable by arch Kconfig
+
+# Watchdog function for clocksources to detect instabilities
+config CLOCKSOURCE_WATCHDOG
+	bool
+
+# Architecture has extra clocksource data
+config ARCH_CLOCKSOURCE_DATA
+	bool
+
+# Timekeeping vsyscall support
+config GENERIC_TIME_VSYSCALL
+	bool
+
+# ktime_t scalar 64bit nsec representation
+config KTIME_SCALAR
+	bool
+
+# Old style timekeeping
+config ARCH_USES_GETTIMEOFFSET
+	bool
+
+# The generic clock events infrastructure
+config GENERIC_CLOCKEVENTS
+	bool
+
+# Clockevents broadcasting infrastructure
+config GENERIC_CLOCKEVENTS_BROADCAST
+	bool
+	depends on GENERIC_CLOCKEVENTS
+
+# Generic update of CMOS clock
+config GENERIC_CMOS_UPDATE
+	bool