full_base: Don't compile OpenWnn.
           This package is/was meant to be optional.

Change-Id: I41f9b7c6dab50fbaf7ba4e90c22f731e7e8cbce2
Merge "full_base: Don't compile OpenWnn.            This package is/was meant to be optional." into android-4.4
Merge pull request #8 from omnirom/android-4.4

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