patch the Makefiles to simplify dh_auto_clean

1 job for debian/master in 6 minutes and 8 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #162561
build

00:06:08

 
Name Stage Failure
failed
build Test
make[2]: Leaving directory '/builds/debian/firmware-tomu/booster'
make[1]: *** [debian/rules:14: override_dh_auto_clean] Error 2
make[1]: Leaving directory '/builds/debian/firmware-tomu'
make: *** [debian/rules:4: clean] Error 2
dpkg-buildpackage: error: debian/rules clean subprocess returned exit status 2
debuild: fatal error at line 1182:
dpkg-buildpackage -us -uc -ui -i -I failed
gbp:error: 'debuild -i -I -uc -us' failed: it exited with 29
ERROR: Job failed: exit code 1