perf: imx9_perf: make the read-only array mask static const

Don't populate the read-only array mask on the stack at run time,
instead make it static const.

Signed-off-by: Colin Ian King <[e-mail]>
Reviewed-by: Frank Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Will Deacon <[e-mail]>

drivers/perf/fsl_imx9_ddr_perf.c

···
 					  int counter, int axi_id, int axi_mask)
 {
 	u32 pmcfg1, pmcfg2;
-	u32 mask[] = {  MX93_PMCFG1_RD_TRANS_FILT_EN,
-			MX93_PMCFG1_WR_TRANS_FILT_EN,
-			MX93_PMCFG1_RD_BT_FILT_EN };
+	static const u32 mask[] = {
+		MX93_PMCFG1_RD_TRANS_FILT_EN,
+		MX93_PMCFG1_WR_TRANS_FILT_EN,
+		MX93_PMCFG1_RD_BT_FILT_EN
+	};
 
 	pmcfg1 = readl_relaxed(pmu->base + PMCFG1);