FIND 7/7A: Don't point to the old tree

The old tree was created before we knew that Find 7/7a should be
supportable with unified builds.

Last weekend, the tree was renamed/moved/reorganized to call
an msm8974-common tree.

This one item was not properly pointed to the new tree.

Change-Id: I2e22537de7831d99cd9e6a9a7980d816f99d9c34