mkqt5bld: Patch prl files for Android

Remove references to a static library in the NDK on the build machine.

Task-number: QTBUG-33660
Change-Id: I4fbde1950fdbf03b634045baeacc1000c9567b7b
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>