SDL: unix: Fixed SDL_GetTicks64 function signature.

SDL Commits
1 
From affb183ea4f6cd97fa467d64291fb79048b85a15 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Sat, 23 Oct 2021 15:20:32 -0400
Subject: [PATCH] unix: Fixed SDL_GetTicks64 function signature.

---
 src/timer/unix/SDL_systimer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/timer/unix/SDL_systimer.c b/src/timer/unix/SDL_systimer.c
index 067d207819..ed4e4af036 100644
--- a/src/timer/unix/SDL_systimer.c
+++ b/src/timer/unix/SDL_systimer.c
@@ -105,7 +105,7 @@ SDL_TicksQuit(void)
 }
 
 Uint64
-SDL_GetTicks(void)
+SDL_GetTicks64(void)
 {
     struct timeval now;