Create up-to-date list of hostprogs and targetprogs based on Makefile.
Have this list sorted like the targets in the Makefile to ease maintenance.
Also move some leftovers from root .gitignore over here.
Signed-off-by: Andreas Pretzsch <apr@cn-eng.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>