Revert "Revert "Revert "msm8960: Add shell property to use AwesomePlayer as default."""

**NUPlayer is default. AwesomePlayer is OFF by default.

This reverts commit 4e54e46ee540da04fff23f5f00f0a24aba06928f.

Change-Id: I6553bd0669d0babdfabf4e95998d5fe47d61c367