drm/i915/dp: Make read-only array bw_gbps static const

Don't populate the read-only array bw_gbps on the stack at run time,
instead make it static const.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240722153937.574819-1-colin.i.king@gmail.com

drivers/gpu/drm/i915/display/intel_dp.c

@@ -3420,7 +3420,7 @@ static void intel_dp_get_pcon_dsc_cap(struct intel_dp *intel_dp)
 
 static int intel_dp_pcon_get_frl_mask(u8 frl_bw_mask)
 {
-	int bw_gbps[] = {9, 18, 24, 32, 40, 48};
+	static const int bw_gbps[] = {9, 18, 24, 32, 40, 48};
 	int i;
 
 	for (i = ARRAY_SIZE(bw_gbps) - 1; i >= 0; i--) {