qcom-common: fix errors in paths.

Replace :/system by :system. This error is not allowed to put the files in the build directory.

Change-Id: I10674f104768849e6cdd9773af40d2c948aeca3d
README: Update branch to cm-11.0

Change-Id: I23debd53fce9cacc49ad6e6b9f9de02e247276fc