SDL: gamecontroller: Fix function name in cherry-picked documentation

From b1a82b5772b68e97bf9a67d4b170498bcf8be280 Mon Sep 17 00:00:00 2001
From: Simon McVittie <[EMAIL REDACTED]>
Date: Mon, 8 Jan 2024 19:07:05 +0000
Subject: [PATCH] gamecontroller: Fix function name in cherry-picked
 documentation

SDL_GetGamepadAxis() is a SDL3-specific name: SDL2 calls gamepads
"game controllers".

Fixes: d3c21666 "gamepad: Clarify range and direction of axes"
Signed-off-by: Simon McVittie <smcv@collabora.com>
---
 include/SDL_gamecontroller.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/SDL_gamecontroller.h b/include/SDL_gamecontroller.h
index a1b436685174..281fa356c63f 100644
--- a/include/SDL_gamecontroller.h
+++ b/include/SDL_gamecontroller.h
@@ -614,7 +614,7 @@ extern DECLSPEC void SDLCALL SDL_GameControllerUpdate(void);
  *  or autodetect the dead zone, which varies between controllers.
  *
  *  Trigger axis values range from 0 (released) to SDL_JOYSTICK_AXIS_MAX
- *  (fully pressed) when reported by SDL_GetGamepadAxis(). Note that this is not the
+ *  (fully pressed) when reported by SDL_GameControllerGetAxis(). Note that this is not the
  *  same range that will be reported by the lower-level SDL_GetJoystickAxis().
  */
 typedef enum