feat(esp_system): Print backtrace for both CPUs when cache error does not determine CPU

tools/test_apps/system/panic/main/include/test_panic.h

@@ -59,6 +59,10 @@ void test_assert(void);
 
 void test_assert_cache_disabled(void);
 
+void test_assert_cache_write_back_error_can_print_backtrace(void);
+
+void test_assert_cache_write_back_error_can_print_backtrace2(void);
+
 void test_illegal_access(void);
 
 void test_capture_dram(void);