gpixmap: Change "return" into assignment in line()

Apparently a copy/paste mistake. Luckily no on has been attempting to
use line on a 16-bit surface so far.
dvb/pmt: Remove return -1 from void function

Thanks betacentauri for reporting this.
Make satfind and scan fix patch more readable
ScanSetup: More fixes for satfind

Hopefully this does cover everything. Thanks for everyone who helped in
this thread: http://openpli.org/forums/topic/30496-satfinder-bsod/page-2
pvrparse: Don't write half AP files.

Access point file is written in total at the end of the recording.
Remove it if writing fails. Otherwise, it will make the recording
appear much shorter than it actually is.
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2