egl/main: fix indentation

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>

src/egl/main/egldisplay.c

@@ -134,7 +134,7 @@ _eglNativePlatformDetectNativeDisplay(void *nativeDisplay)
 #endif
 
 #ifdef HAVE_HAIKU_PLATFORM
-	return _EGL_PLATFORM_HAIKU;
+      return _EGL_PLATFORM_HAIKU;
 #endif
    }