build: fix building without MBIM support

The foxconn shared utils are only built when MBIM is enabled, and
therefore the dell and foxconn plugins should only expect those shared
utils to be present if MBIM is enabled. The foxconn plugin will be
fully disabled when MBIM is disabled.

The fibocom shared utils are only built when MBIM is enabled, and
therefore the fibocom plugin should not expect them built
unconditionally, they will only be present if MBIM is enabled

meson.build

@@ -299,15 +299,23 @@ plugins_shared_reqs = {
   'xmm': true,
 }
 
+
+fibocom_shared_reqs = ['xmm']
+dell_shared_reqs = ['novatel', 'sierra', 'telit', 'xmm']
+if enable_mbim
+  fibocom_shared_reqs += ['fibocom']
+  dell_shared_reqs += ['foxconn']
+endif
+
 plugins_options_reqs = {
   'altair-lte': {'available': true, 'shared': []},
   'anydata': {'available': true, 'shared': []},
   'broadmobi': {'available': true, 'shared': []},
   'cinterion': {'available': true, 'shared': []},
-  'dell': {'available': true, 'shared': ['foxconn', 'novatel', 'sierra', 'telit', 'xmm']},
+  'dell': {'available': true, 'shared': dell_shared_reqs},
   'dlink': {'available': true, 'shared': []},
-  'fibocom': {'available': true, 'shared': ['fibocom', 'xmm']},
-  'foxconn': {'available': true, 'shared': ['foxconn']},
+  'fibocom': {'available': true, 'shared': fibocom_shared_reqs},
+  'foxconn': {'available': enable_mbim, 'shared': ['foxconn']},
   'generic': {'available': true, 'shared': []},
   'gosuncn': {'available': true, 'shared': []},
   'haier': {'available': true, 'shared': []},