These were broken for a reason.

Revert "Fix inclusion of qcom hardware makefiles with prebuilt kernel"

This reverts commit 89a241def97a04c0a39555a1903f8ba3993845f5.

Change-Id: Ib031ee0eaff33f7aeac0e19ab625d374199889b8
Un-comment an optional debugging variable...

... pdftw.

Change-Id: I7f4b4acf38e18ab0b12fbe006b57f47210018872