Fixed mmsproxy for Mobinil MMS

See https://www.facebook.com/permalink.php?id=422136431132589&story_fbid=629385780407652

Change-Id: I527b4efff7a30d1c210135040f88c3f63cd68c78
Added APN entry for Etisalat Egypt

Source of the entry is from Ultimate ROM LT4v6 for Samsung Note (N7000)

Change-Id: I38f50a90c06ff954e5927d43bb4f20a93e928c97