Log Message:
[libretro-]flycast: Update to 2.4

   v2.4: RetroAchievements, Force Feedback

What's Changed

     * RetroAchievements support
     * UI improvements with save state thumbnails
     * Force Feedback support for some arcade games (F355, 18 Wheeler,
       Maximum Speed, Faster Than Speed, Initial D, Club Kart, King of Route
       66, Tokyo Bus Guide, Sega Driving Simulator)
     * Various fixes by vkedwardli
     * Many upgrades by scribam

Fixed Games

     * Beach Spikers
     * Capcom vs SNK 2000 Pro
     * Irides: Master of blocks
     * Mars TV
     * Metropolis Street Racer
     * Mortal Kombat
     * Quake III
     * Red Dog Superior Firepower
     * Shin Nihon Pro Wrestling
     * Soul Surfer
     * Virtua Cop 2

v2.3: Battle Cable, more SystemSP games

What's New

     * Battle Cable support
     * SystemSP hopper games: kingyo, manpuku, shateki, magicpop, unomedal,
       puyomedal, ochaken and westdmrg
     * Club Kart card reader support
     * Gamepad dead zone and saturation settings
     * HID barcode scanner support for card games (Mushi King, Dinosaur King,
       Love & Berry)

Fixed Games

     * Initial D v2/v3
     * Melty Blood: Act Cadenza
     * Confidential Mission
     * The Maze of the Kings
     * Spikers Battle
     * NBA Showtime
     * NHL 2K2
     * Ready 2 Rumble Boxing
     * Monkey Ball
     * Crackin'DJ 1 and 2
     * F355 (Naomi)
     * Samurai Shodown VI
     * Shenmue
     * Test Drive Le Mans
     * Sakura Taisen 3
     * Death Crimson 2
     * Force Five
     * NHL 2K2
     * Shakatto Tambourine
     * Xtreme Sports
     * Blue Stinger
     * RevolveR
     * Kaen Seibo
     * Nittere Shiki! Mirai Yosou Studio
     * Shakatto Tambourine Arcade