uqmi: Ignore wrong maybe-uninitialized and dangling-pointer error

uqmi: Ignore wrong maybe-uninitialized and dangling-pointer error

GCC 12.2.0 shows this false positive error message:
````
uqmi-2022-05-04-56cb2d40/dev.c: In function 'qmi_request_wait':
uqmi-2022-05-04-56cb2d40/dev.c:217:23: error: storing the address of local variable 'complete' in '*req.complete' [-Werror=dangling-pointer=]
  217 |         req->complete = &complete;
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~
uqmi-2022-05-04-56cb2d40/dev.c:208:14: note: 'complete' declared here
  208 |         bool complete = false;
      |              ^~~~~~~~
uqmi-2022-05-04-56cb2d40/dev.c:208:14: note: 'req' declared here
cc1: all warnings being treated as errors
````

and this one:
````
In file included from uqmi-2022-05-04-56cb2d40/commands.c:28:
In function 'blobmsg_close_table',
    inlined from 'cmd_nas_get_cell_location_info_cb' at /home/haukeuqmi-2022-05-04-56cb2d40/commands-nas.c:897:4:
/usr/include/libubox/blobmsg.h:256:9: error: 'c' may be used uninitialized [-Werror=maybe-uninitialized]
  256 |         blob_nest_end(buf, cookie);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from uqmi-2022-05-04-56cb2d40/commands.c:169:
uqmi-2022-05-04-56cb2d40/commands-nas.c: In function 'cmd_nas_get_cell_location_info_cb':
uqmi-2022-05-04-56cb2d40/commands-nas.c:713:15: note: 'c' was declared here
  713 |         void *c, *t, *cell, *freq;
      |               ^
cc1: all warnings being treated as errors
````

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>