Add build dependencies introduced by prelinker.
Merge pull request #12 from ting-yuan/prelink

Add build dependencies introduced by prelinker.
Revert "Add build dependencies introduced by prelinker."

Not blocking basecamp, revert and re-pull tomorrow.
See https://bugzilla.mozilla.org/show_bug.cgi?id=811671#c60

This reverts commit 8df0ba074f92dd80dee7994df4c5163c3becd9fc.
Merge pull request #13 from vicamo/revert-bug-811671

Revert "Add build dependencies introduced by prelinker."
Changed default arm toolchain from: gcc-4.4.x to: gcc-4.6