riscv: dts: microchip: mpfs: Fix clock controller node

Fix the device node for the clock controller:
  - Remove bogus "reg-names" property,
  - Remove unneeded "clock-output-names" property.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi

@@ -197,17 +197,8 @@
 		clkcfg: clkcfg@20002000 {
 			compatible = "microchip,mpfs-clkcfg";
 			reg = <0x0 0x20002000 0x0 0x1000>;
-			reg-names = "mss_sysreg";
 			clocks = <&refclk>;
 			#clock-cells = <1>;
-			clock-output-names = "cpu", "axi", "ahb", "envm",	/* 0-3   */
-				 "mac0", "mac1", "mmc", "timer",		/* 4-7   */
-				"mmuart0", "mmuart1", "mmuart2", "mmuart3",	/* 8-11  */
-				"mmuart4", "spi0", "spi1", "i2c0",		/* 12-15 */
-				"i2c1", "can0", "can1", "usb",			/* 16-19 */
-				"rsvd", "rtc", "qspi", "gpio0",			/* 20-23 */
-				"gpio1", "gpio2", "ddrc", "fic0",		/* 24-27 */
-				"fic1", "fic2", "fic3", "athena", "cfm";	/* 28-32 */
 		};
 
 		serial0: serial@20000000 {