ARM: dts: Drop custom clkctrl compatible and update omap5 l4per

We can now use the clock-output-names and don't need custom compatible
values for each clkctrl instance. And we can use a generic name also for
the clock manager instance.

Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Tero Kristo <kristo@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Message-Id: <20220204084339.12341-5-tony@atomide.com>

arch/arm/boot/dts/omap54xx-clocks.dtsi

@@ -1260,7 +1260,7 @@ l3instr_clkctrl: clk@20 {
 		};
 	};
 
-	l4per_cm: l4per_cm@1000 {
+	l4per_cm: clock@1000 {
 		compatible = "ti,omap4-cm";
 		clock-output-names = "l4per_cm";
 		reg = <0x1000 0x200>;
@@ -1269,13 +1269,15 @@ l4per_cm: l4per_cm@1000 {
 		ranges = <0 0x1000 0x200>;
 
 		l4per_clkctrl: clock@20 {
-			compatible = "ti,clkctrl-l4per", "ti,clkctrl";
+			compatible = "ti,clkctrl";
+			clock-output-names = "l4per_clkctrl";
 			reg = <0x20 0x15c>;
 			#clock-cells = <2>;
 		};
 
 		l4sec_clkctrl: clock@1a0 {
-			compatible = "ti,clkctrl-l4sec", "ti,clkctrl";
+			compatible = "ti,clkctrl";
+			clock-output-names = "l4sec_clkctrl";
 			reg = <0x1a0 0x3c>;
 			#clock-cells = <2>;
 		};