makefiles/docker.inc.mk: always use quotes around -e and -v options
makefiles/docker.inc.mk: always use quotes around -e and -v options

Harmonize the '--volumes' and '--env' commands before factorizing them.
Remove extra 'space'.

OlegHahm/RIOT,smlng/RIOT,jasonatran/RIOT,mtausig/RIOT,aeneby/RIOT,josephnoir/RIOT,ant9000/RIOT,kYc0o/RIOT,smlng/RIOT,toonst/RIOT,yogo1212/RIOT,RIOT-OS/RIOT,aeneby/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,kaspar030/RIOT,kYc0o/RIOT,kaspar030/RIOT,miri64/RIOT,josephnoir/RIOT,yogo1212/RIOT,x3ro/RIOT,jasonatran/RIOT,miri64/RIOT,authmillenon/RIOT,rfuentess/RIOT,mtausig/RIOT,ant9000/RIOT,josephnoir/RIOT,toonst/RIOT,OTAkeys/RIOT,aeneby/RIOT,aeneby/RIOT,toonst/RIOT,yogo1212/RIOT,ant9000/RIOT,OlegHahm/RIOT,rfuentess/RIOT,mtausig/RIOT,authmillenon/RIOT,x3ro/RIOT,OTAkeys/RIOT,toonst/RIOT,authmillenon/RIOT,yogo1212/RIOT,x3ro/RIOT,mtausig/RIOT,rfuentess/RIOT,kaspar030/RIOT,OlegHahm/RIOT,basilfx/RIOT,josephnoir/RIOT,authmillenon/RIOT,OTAkeys/RIOT,authmillenon/RIOT,ant9000/RIOT,miri64/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,basilfx/RIOT,x3ro/RIOT,kYc0o/RIOT,smlng/RIOT,josephnoir/RIOT,kYc0o/RIOT,miri64/RIOT,smlng/RIOT,yogo1212/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,aeneby/RIOT,mtausig/RIOT,rfuentess/RIOT,yogo1212/RIOT,OTAkeys/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,authmillenon/RIOT,kaspar030/RIOT,RIOT-OS/RIOT,miri64/RIOT,toonst/RIOT,basilfx/RIOT,basilfx/RIOT,x3ro/RIOT,kaspar030/RIOT,jasonatran/RIOT,smlng/RIOT,jasonatran/RIOT,basilfx/RIOT,ant9000/RIOT