Revert "Update proprietary-files.txt"

This reverts commit afafb40ea1e3ec2855ef145f228d1079f78edd2f.
Revert "Delete wlan.ko"

This reverts commit 5c1419c2aacb196d798c57b9d3dc15f68f2577be.
Revert "Delete wlan.ko"

This reverts commit 424e49bdfb1983351bb9e24919e9107149473fd5.
Revert "Delete wlan.ko"

This reverts commit 3a7c5fb01f4c2696671f70e5f9d7b469c1672b3c.
Revert "Update device.mk"

This reverts commit 9350d93e482bdab0510b4d44c35bd7cb6a37d729.