popup: fix popup sizing when scroll enabled.
Summary:
Force immediate calculate on main_layout after sizing hints set.
@fix T6886
Test Plan: Elementary_test: popup -> select scrollable -> use popup examples.
Reviewers: committers, zmike, stephenmhouston, bu5hm4n, devilhorns
Reviewed By: committers, zmike, stephenmhouston
Subscribers: cedric
Tags: efl
Maniphest Tasks: T6886
Differential Revision: https://phab.enlightenment.org/D6509