After finishing a playback of media player, progress bar doesn't present correct...

After finishing a playback of media player, progress bar doesn't present correct position of seek point when user press time line for seek.

[Title] After finishing a playback of media player, progress bar doesn't present correct position of seek point when user press time line for seek.
[Issue#] N_SE-38230
[Problem] After finishing a playback of media player, progress bar doesn't present correct position of seek point when user press time line for seek.
[Cause] Playbackposition has been returned duration when it was reached the end.
[Solution] Reset m_isEndReached should be reset.

Change-Id: I0e956da6ea005d434caf5f51e3a7175cf918d736