media_build: update drivers to version 2014-08-15

- added Kernel 3.16/17 compatibility
- removed fw download and install (already at OE)

- media_build_c7673ba needs upload to OE server (/tools/mkpkg/mkpkg_media_build)!
media_build: update drivers to version 2014-09-03
media_build: update drivers to version 2014-09-26
Merge pull request #3454 from CvH/patch-3

media_build: update drivers to version 2014-09-26