e_comp_wl_shell: fix to do not evas_object_show during map when iconified by client

e_comp_wl_shell: fix to do not evas_object_show during map when iconified by client

once client is unmaped and trying to map again to show,
server should check if it is iconified by client at the step of #2
otherwise, focus gets wrong while calculating visibility zone

Client                        Server
1. raise        --------->    ec->frame restack
2. show            --------->    ec map
3. uniconify by client    --------->    ec->frame show

Change-Id: I137719481920d2d0b1e8fae03e23839a6a82b607