spi_flash: Support suspend/resume mode for operations

- Adds arbitration between the erase and write in suspend mode
     (If the flash memory is suspended then only a read operation can be performed.)
- espcoredump: Dump does not use suspend feature, just resume before continue.
- spi_flash: Add release_cpu() to do suspend/release_cpu/resume

components/soc/esp32s2/include/soc/spi_mem_struct.h

@@ -266,7 +266,7 @@ typedef volatile struct spi_mem_dev_s {
         };
         uint32_t val;
     } fsm;
-    uint32_t data_buf[18];                                                /*data buffer*/
+    uint32_t data_buf[16];                                                /*data buffer*/
     union {
         struct {
             uint32_t waiti_en:             1;                   /*auto-waiting flash idle operation when program flash or erase flash. 1: enable 0: disable.*/