vibrator: use package as name

In order to provide a more descriptive name, and to be consistent
with HIDL, the stable AIDL package names are switching from
vintf-vibrator format to the package format
(android.hardware.vibrator).

Bug: N/A
Test: all build time
Change-Id: Ie6580714c3d09c1f99808ca9f8dc7875487f1049
Merged-In: Ie6580714c3d09c1f99808ca9f8dc7875487f1049