elm_colorselector: Fixed to get proper min size with picker only mode
elm_colorselector: Fixed to get proper min size with picker only mode

Summary:
Fixed to make colorselector have proper min size
when colorselector is in ELM_COLORSELECTOR_PICKER mode

@fix

Reviewers: Hermet

Subscribers: Hermet

Differential Revision: https://phab.enlightenment.org/D1832

rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary