change(mmap): added built-test-rules.yml contents to flash_mmap test_app

components/spi_flash/test_apps/.build-test-rules.yml

@@ -21,6 +21,11 @@ components/spi_flash/test_apps/flash_encryption:
     - esp_mm
     - spi_flash
 
+components/spi_flash/test_apps/flash_mmap:
+  depends_components:
+    - esp_mm
+    - spi_flash
+
 components/spi_flash/test_apps/flash_suspend:
   disable:
     - if: SOC_SPI_MEM_SUPPORT_AUTO_SUSPEND != 1