soc: qcom: service-locator: add enable module parameter

Allow the service-locator module to be set via a module
parameter to for another avenue of customization.

Change-Id: I300b01cc0f130e797734bfb576f2bfedf1075614
CRs-Fixed: 982026
Signed-off-by: David Keitel <dkeitel@codeaurora.org>