Merge branch 'bugfix/improve_spi_timing_for_flash_v3.3' into 'release/v3.3'

bugfix(flash): improve spi cs timing settings for flash (backport v3.3)

See merge request espressif/esp-idf!5514

components/esp32/cpu_start.c

@@ -72,6 +72,7 @@
 #include "pm_impl.h"
 #include "trax.h"
 #include "esp_ota_ops.h"
+#include "bootloader_common.h"
 
 #define STRINGIFY(s) STRINGIFY2(s)
 #define STRINGIFY2(s) #s
@@ -173,6 +174,8 @@ void IRAM_ATTR call_start_cpu0()
         abort();
 #endif
     }
+# else  // If psram is uninitialized, we need to improve the flash cs timing.
+    bootloader_common_set_flash_cs_timing();
 #endif
 
     ESP_EARLY_LOGI(TAG, "Pro cpu up.");