[M108 Migration] Use third party libevent instead of system library

[M108 Migration] Use third party libevent instead of system library

This patch makes changes to use Chromium third party libevent
for all profiles. This fixes following error occurring on the
device with new platform binary.

>> error while loading shared libraries: libevent-2.1.so.7:

Applying this patch does not change the size of libchromium-ewk.so

Reference: https://review.tizen.org/gerrit/279837

Change-Id: I684e6c735ddc13ba6126b0ba2539747b9580ef7a
Signed-off-by: ayush.k123 <ayush.k123@samsung.com>