[packaging] prepare to handle multiple .spec flavours

Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>
[hybris-vibrator] plugin initial commit

Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>
[packaging] autogenerate spec files

Signed-off-by: Simonas Leleiva <simonas.leleiva@jollamobile.com>