Update tests for assert and abort

- Place panic_abort in IRAM
- Added abort, assert test case in case of cache disabled
- Expect assert instead of abort in a freertos_mutex test

components/freertos/test/test_freertos_mutex.c

@@ -14,7 +14,7 @@ static void mutex_release_task(void* arg)
     TEST_FAIL_MESSAGE("should not be reached");
 }
 
-TEST_CASE("mutex released not by owner causes an assert", "[freertos][reset=abort,SW_CPU_RESET]")
+TEST_CASE("mutex released not by owner causes an assert", "[freertos][reset=assert,SW_CPU_RESET]")
 {
     SemaphoreHandle_t mutex = xSemaphoreCreateMutex();
     xSemaphoreTake(mutex, portMAX_DELAY);