audio: remove QCOM_FM_ENABLED ifdefs

* CM is using a different ifdef here that enables these by default.

Change-Id: I07249d1c3555446238d846901481b13634967aab
Add back DurationTimer to fix camera.msm8960 load

cannot locate symbol "_ZN7android13DurationTimer5startEv"

Change-Id: I29d3283b644c773e6d798d17b2ef139a470048da