arm64: dts: r8a7795: salvator-x: Drop _clk suffix from X12 clock node name

The current practice is to not add _clk suffixes to clock node names in
DT, as these names are used as the actual clock names.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

@@ -56,7 +56,7 @@ memory@48000000 {
 		reg = <0x0 0x48000000 0x0 0x38000000>;
 	};
 
-	x12_clk: x12_clk {
+	x12_clk: x12 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <24576000>;