clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip

This patch changes the compatibility string to match with the smallest
supported chip (EP7209). Since the DT-support for this CPU is not yet
announced, this change is safe.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/timer/cirrus,clps711x-timer.txt

 * Cirrus Logic CLPS711X Timer Counter
 
 Required properties:
-- compatible: Shall contain "cirrus,clps711x-timer".
+- compatible: Shall contain "cirrus,ep7209-timer".
 - reg       : Address and length of the register set.
 - interrupts: The interrupt number of the timer.
 - clocks    : phandle of timer reference clock.
@@ -15,14 +15,14 @@ Example:
 	};
 
 	timer1: timer@80000300 {
-		compatible = "cirrus,ep7312-timer", "cirrus,clps711x-timer";
+		compatible = "cirrus,ep7312-timer", "cirrus,ep7209-timer";
 		reg = <0x80000300 0x4>;
 		interrupts = <8>;
 		clocks = <&clks 5>;
 	};
 
 	timer2: timer@80000340 {
-		compatible = "cirrus,ep7312-timer", "cirrus,clps711x-timer";
+		compatible = "cirrus,ep7312-timer", "cirrus,ep7209-timer";
 		reg = <0x80000340 0x4>;
 		interrupts = <9>;
 		clocks = <&clks 6>;

drivers/clocksource/clps711x-timer.c

@@ -121,5 +121,5 @@ static void __init clps711x_timer_init(struct device_node *np)
 		break;
 	}
 }
-CLOCKSOURCE_OF_DECLARE(clps711x, "cirrus,clps711x-timer", clps711x_timer_init);
+CLOCKSOURCE_OF_DECLARE(clps711x, "cirrus,ep7209-timer", clps711x_timer_init);
 #endif