Re-add panic.o to IRAM/DRAM.

components/esp32/panic.c

@@ -30,7 +30,7 @@
 
 #include "esp_gdbstub.h"
 #include "esp_panic.h"
-
+#include "esp_attr.h"
 
 /*
 Panic handlers; these get called when an unhandled exception occurs or the assembly-level
@@ -38,6 +38,10 @@ task switching / interrupt code runs into an unrecoverable error. The default ta
 overflow handler also is in here.
 */
 
+/*
+Note: The linker script will put everything in this file in IRAM/DRAM, so it also works with flash cache disabled.
+*/
+
 #if !CONFIG_ESP32_PANIC_SILENT_REBOOT
 //printf may be broken, so we fix our own printing fns...
 inline static void panicPutchar(char c) {