broadband-modem-mbim: ensure cached state info is reseted on disable

So that it is reloaded fresh once re-enabled, otherwise we may be
using stale state values that are not in sync with the state reported
in the interface skeletons.

meson.build

@@ -252,7 +252,7 @@ config_h.set('WITH_BUILTIN_PLUGINS', enable_builtin_plugins)
 # MBIM support (enabled by default)
 enable_mbim = get_option('mbim')
 if enable_mbim
-  mbim_glib_dep = dependency('mbim-glib', version: '>= 1.29.2')
+  mbim_glib_dep = dependency('mbim-glib', version: '>= 1.29.5')
 endif
 config_h.set('WITH_MBIM', enable_mbim)