Revert "linux: update to linux-3.6.10"

This reverts commit 8e399f02f7d5810611bdc563f59282f556252e3e.
- re-updated kernel to 3.6.10
- added CFLAGS for gst-plugins-bad
- removed -x for get-script in gst-plugins-bad
- added test for configure in gst-plugins-good/build
- added autovideosink and autoaudiosink in gst-plugins-good/build
- switch from gst-plugins-good 1.0.5 to latest git clone via get-script
- removed piomxtextures from qt5dev dependencies