ecore_wl2: Take a library reference on tbmsurface create

ecore_wl2: Take a library reference on tbmsurface create

We need to call ecore_wl2_init in tbmbuf_surface_create because of this commit
0d27985677897363f148c92042ef3d3917796981

reproduction:
1. Call elm_init(0, NULL);
2. Call elm_shutdown();
3. Check that there is no CRI error message
[CRI<14619>:eina_log lib/ecore_wl2/ecore_wl2.c:238 ecore_wl2_shutdown() unknown log domain -1, original message was: ERR: 'Ecore_Wl2 shutdown called without Ecore_Wl2 Init']

or

1. In efl-test-suite, execute utc_elm_bg_add
2. Check that there is no CRI error message

Change-Id: If8ec5795109e7a87bb893bd1633ec454873b3de7