timer: add orion-timer support

Add timer support for Kirkwood and MVEBU devices.

Cc: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/timer/Kconfig b/drivers/timer/Kconfig
index 20b5af7..4049290 100644
--- a/drivers/timer/Kconfig
+++ b/drivers/timer/Kconfig
@@ -194,6 +194,12 @@
 	help
 	  Select this to enable an timer for Omap devices.
 
+config ORION_TIMER
+	bool "Orion timer support"
+	depends on TIMER
+	help
+	  Select this to enable an timer for Orion devices.
+
 config RISCV_TIMER
 	bool "RISC-V timer support"
 	depends on TIMER && RISCV