soc: esp32c3: fix cpu vendor name

Build shows warning due to incompatible
CPU vendor name. This fixes it and applies
necessary changes in files.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>

drivers/clock_control/clock_control_esp32.c

@@ -21,7 +21,7 @@
 #include <dt-bindings/clock/esp32s2_clock.h>
 #include "esp32s2/rom/rtc.h"
 #elif CONFIG_IDF_TARGET_ESP32C3
-#define DT_CPU_COMPAT esp_riscv
+#define DT_CPU_COMPAT espressif_riscv
 #include <dt-bindings/clock/esp32c3_clock.h>
 #include "esp32c3/rom/rtc.h"
 #include <soc/soc_caps.h>

dts/bindings/cpu/espressif,riscv.yml

@@ -3,7 +3,7 @@
 
 description: Espressif RISC-V CPU
 
-compatible: "esp,riscv"
+compatible: "espressif,riscv"
 
 include: cpu.yaml
 

dts/riscv/espressif/esp32c3.dtsi

@@ -24,7 +24,7 @@
 
 		cpu0: cpu@0 {
 			device_type = "cpu";
-			compatible = "esp,riscv";
+			compatible = "espressif,riscv";
 			reg = <0>;
 		};
 	};