This fixes a few minor issues (partially cosmetic) in ltq-adsl and
ltq-adsl-fw Makefiles:
- fix PKG_SOURCE_URL and switch to https
- remove non-existant FW_NAME variable
- fix package name for config inclusion
- fix config symbol for debugging
Fixes: 1d0a9d0c0470 ("move ltq-adsl")
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>