refactor(riscv): added a new API for the interrupts

components/soc/esp32c3/include/soc/interrupt_reg.h

@@ -3,6 +3,9 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
+#pragma once
+
 #include "interrupt_core0_reg.h"
 
 #define INTERRUPT_CURRENT_CORE_INT_THRESH_REG   INTERRUPT_CORE0_CPU_INT_THRESH_REG
+#define INTERRUPT_PRIO_REG(n)                   (INTERRUPT_CORE0_CPU_INT_PRI_0_REG + (n)*4)