quectel: no real requirement for QCDM

The supported Quectel modules are usually QMI based and therefore
very new, there is no real requirement to support QCDM based
management.

src/plugins/quectel/mm-plugin-quectel.c

@@ -95,7 +95,7 @@ mm_plugin_create_quectel (void)
                       MM_PLUGIN_ALLOWED_VENDOR_IDS,     vendor_ids,
                       MM_PLUGIN_ALLOWED_VENDOR_STRINGS, vendor_strings,
                       MM_PLUGIN_ALLOWED_AT,             TRUE,
-                      MM_PLUGIN_REQUIRED_QCDM,          TRUE,
+                      MM_PLUGIN_ALLOWED_QCDM,           TRUE,
                       MM_PLUGIN_ALLOWED_QMI,            TRUE,
                       MM_PLUGIN_ALLOWED_MBIM,           TRUE,
                       NULL));