SDL: added hint for joysticks to stablize sixaxis & dualshock controllers (#5007)

SDL Commits
1 
From 6c25aed419d98582a9bc0578e272f1a766d50bf6 Mon Sep 17 00:00:00 2001
From: Nate River <[EMAIL REDACTED]>
Date: Sat, 27 Nov 2021 14:01:18 -0500
Subject: [PATCH] added hint for joysticks to stablize sixaxis & dualshock
 controllers (#5007)

---
 test/testgamecontroller.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/testgamecontroller.c b/test/testgamecontroller.c
index 28d47bf710..800ce225ac 100644
--- a/test/testgamecontroller.c
+++ b/test/testgamecontroller.c
@@ -530,6 +530,7 @@ main(int argc, char *argv[])
     SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
     SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE, "1");
     SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
+    SDL_SetHint(SDL_HINT_LINUX_JOYSTICK_DEADZONES, "1");
 
     /* Enable standard application logging */
     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);