[ARM] Orion/Kirkwood: rename orion5x_wdt to orion_wdt

The Orion watchdog driver is also used on Kirkwood.

Convention is to use orion5x for stuff specific to 88F5xxx Orion chips
and simply "orion" for shared stuff across SoCs including Kirkwood.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 7f8c56b..c3afa14 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -40,7 +40,7 @@
 obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o
 obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
 obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
-obj-$(CONFIG_ORION5X_WATCHDOG) += orion5x_wdt.o
+obj-$(CONFIG_ORION_WATCHDOG) += orion_wdt.o
 
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o