ARM: dts: nspire: Fix SP804 users

Even though the SP804 binding allows to specify only one clock, the
primecell driver requires a named clock to activate the bus clock.

Specify the one clock three times and provide some clock-names, to
make the DT match the SP804 and primecell binding.

Link: https://lore.kernel.org/r/20200907121831.242281-3-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

Author: Andre-ARM

arch/arm/boot/dts/nspire.dtsi

@@ -145,15 +145,19 @@
 
 			timer0: timer@900C0000 {
 				reg = <0x900C0000 0x1000>;
-
-				clocks = <&timer_clk>;
+				clocks = <&timer_clk>, <&timer_clk>,
+					 <&timer_clk>;
+				clock-names = "timer0clk", "timer1clk",
+					      "apb_pclk";
 			};
 
 			timer1: timer@900D0000 {
 				reg = <0x900D0000 0x1000>;
 				interrupts = <19>;
-
-				clocks = <&timer_clk>;
+				clocks = <&timer_clk>, <&timer_clk>,
+					 <&timer_clk>;
+				clock-names = "timer0clk", "timer1clk",
+					      "apb_pclk";
 			};
 
 			watchdog: watchdog@90060000 {