drm/amd/display/dc/basics/vector: Make local function 'dal_vector_presized_costruct' static

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../display/dc/basics/vector.c:55:6: warning: no previous prototype for ‘dal_vector_presized_costruct’ [-Wmissing-prototypes]

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/basics/vector.c

@@ -52,7 +52,7 @@ bool dal_vector_construct(
 	return true;
 }
 
-bool dal_vector_presized_costruct(
+static bool dal_vector_presized_costruct(
 	struct vector *vector,
 	struct dc_context *ctx,
 	uint32_t count,