edje: fix cursor scrolling

edje: fix cursor scrolling

Summary:
If there is a string larger than the size of entry
and when the entry is auto scrolling, cursor is not visible.
Using _edje_entry_cursor_geometry_get guarantees the minimum size of the cursor,
and guarantee the size from edje. (min_restricted_calc)

Test Plan:
elemenary_test

Enter a long string in the "Search Menu" entry.
Observe the cursor when the entry scrolls automatically.

Reviewers: woohyun, ali.alzyod

Reviewed By: ali.alzyod

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D11649

Change-Id: Iefe9c0356494aa82304ea7302bd97c97ab4f4688
Signed-off-by: Bowon Ryu <bowon.ryu@samsung.com>