Ozzy Osbourne is mourning the loss of his beloved dog Rocky. The Black Sabbath legend has been left devastated after the Osbourne family’s pet pooch sadly passed away after giving them 15 years of companionship. He wrote on Instagram alongside a picture of him with his Pomeranian sidekick: “Two days ago I lost my good friend Rocky who has been at my side for 15 years. I’ll see you on the other side my friend. I love you always – Ozzy.” Wife Sharon, 71, wrote: “We lost an OG and Ozzy’s partner in crime ~ Rest Easy Rocky.” Their daughter Kelly, 39, posted: “Rocky was my dad’s sidekick for 15 yea…