sensors: Rename ADSP driver to SSC and move it to drivers/sensors

Rename sensors ADSP driver to sensors SSC and Move it from
arch/arm/mach-msm to drivers/sensors as drivers/sensors is
the most suitable home for this driver.

Change-Id: I72ae3cfd86157aa2523a4c4d0bf9160f9f2915ae
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>