mel.conf: Fix the qtbase bbappend mask.

The bbappend file name of qtbase in meta-fsl-arm is changed.
Hence this patch fixes the issue of qtbase compilation issue
of -lGAL.

Signed-off-by: Sujith H <Sujith_Haridasan@mentor.com>

	conf/0001-Qt5-Fixes-for-building-Qt5-on-master.patch