Elm_Interface_Scrollable: Improvement in looping behavior
Elm_Interface_Scrollable: Improvement in looping behavior

Summary:
x and y position variable assumes values ranging from min to max.
cw, the content width is larger than max in x axis. Beacause of this
the scroller is not able to loop in rigth/bottom direction. For looping
comparision min and max values should be used instead of content width.

@fix

Signed-off-by: Umesh Tanwar <umesh.tanwar@samsung.com>

Reviewers: raster, seoz, cedric, Hermet

Reviewed By: Hermet

Subscribers: eagleeye, SanghyeonLee, singh.amitesh, sachin.dev

Differential Revision: https://phab.enlightenment.org/D2731

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