ARM: at91: PIT: Move the driver to drivers/clocksource

Now that we don't depend on anyting in the mach-at91 directory, we can just
move the driver to where it belongs.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

Conflicts:
	arch/arm/mach-at91/Kconfig
	arch/arm/mach-at91/Makefile
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index cfd6519..82a2ebe 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -120,6 +120,10 @@
 	help
 	 Use ARM global timer clock source as sched_clock
 
+config ATMEL_PIT
+	select CLKSRC_OF if OF
+	def_bool SOC_AT91SAM9 || SOC_SAMA5
+
 config CLKSRC_METAG_GENERIC
 	def_bool y if METAG
 	help