By Hunter Hodies The 49ers are fired up ahead of their NFC Championship clash against the Rams on Sunday evening. Their Twitter account released a hype video that will surely give anyone that watches it chills. Part of the video has different players firing the team up while other parts show highlights of the season series. San Francisco swept the season series against Los Angeles and has won the last six meetings in this series. It looked like the Rams were going to knock the 49ers out of the playoffs during Week 18, but they coughed up a 17-0 lead in the second half. San Francisco then inter…