cpu/esp32: esp_wifi compile configuration tuned
cpu/esp32: esp_wifi compile configuration tuned

Downsized numbers of dynamic send and receive buffers.
rfuentess/RIOT,aeneby/RIOT,RIOT-OS/RIOT,miri64/RIOT,jasonatran/RIOT,OTAkeys/RIOT,aeneby/RIOT,RIOT-OS/RIOT,aeneby/RIOT,smlng/RIOT,rfuentess/RIOT,OlegHahm/RIOT,x3ro/RIOT,mtausig/RIOT,authmillenon/RIOT,authmillenon/RIOT,basilfx/RIOT,mtausig/RIOT,kYc0o/RIOT,josephnoir/RIOT,x3ro/RIOT,yogo1212/RIOT,miri64/RIOT,rfuentess/RIOT,ant9000/RIOT,smlng/RIOT,smlng/RIOT,jasonatran/RIOT,kYc0o/RIOT,OlegHahm/RIOT,ant9000/RIOT,mtausig/RIOT,kaspar030/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,mtausig/RIOT,jasonatran/RIOT,OlegHahm/RIOT,miri64/RIOT,kaspar030/RIOT,kaspar030/RIOT,cladmi/RIOT,toonst/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,josephnoir/RIOT,toonst/RIOT,yogo1212/RIOT,authmillenon/RIOT,OTAkeys/RIOT,basilfx/RIOT,OlegHahm/RIOT,mtausig/RIOT,x3ro/RIOT,cladmi/RIOT,cladmi/RIOT,rfuentess/RIOT,x3ro/RIOT,miri64/RIOT,OTAkeys/RIOT,x3ro/RIOT,rfuentess/RIOT,OTAkeys/RIOT,jasonatran/RIOT,ant9000/RIOT,toonst/RIOT,authmillenon/RIOT,toonst/RIOT,kaspar030/RIOT,miri64/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,aeneby/RIOT,kYc0o/RIOT,yogo1212/RIOT,basilfx/RIOT,josephnoir/RIOT,ant9000/RIOT,ant9000/RIOT,toonst/RIOT,yogo1212/RIOT,yogo1212/RIOT,smlng/RIOT,cladmi/RIOT,kYc0o/RIOT,josephnoir/RIOT,OTAkeys/RIOT,smlng/RIOT,basilfx/RIOT,kYc0o/RIOT,aeneby/RIOT,jasonatran/RIOT,josephnoir/RIOT,OlegHahm/RIOT,cladmi/RIOT,authmillenon/RIOT,basilfx/RIOT