wl_desktop_shell: cosmetic codes again to follow EFL coding conventions.
wl_desktop_shell: cosmetic codes again to follow EFL coding conventions.

Change-Id: I6e1d75ae479e3a17bc01920c2bf0385a13e8d1ac

tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment