vibrator: Remove qemu dependency.

Remove dependency on the obsolete qemu functions for
libhardware_legacy which are going to be removed by
a future patch. Use the <system/qemu_pipe.h> interface
directly instead.

BUG=25875346

Change-Id: I7d6db640e1afca3e83d1b53e6e2460fbf58a5615
2 files changed