fix: remove old-style declarations

TF-A wants to eventually enable -Wold-style-definition globally. Convert
the rare few instances where this is still the case.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I9c450fc875cf097e6de2ed577ea3b085821c9f5e
diff --git a/drivers/nxp/ddr/phy-gen2/messages.h b/drivers/nxp/ddr/phy-gen2/messages.h
index 7dec7df..a2310f2 100644
--- a/drivers/nxp/ddr/phy-gen2/messages.h
+++ b/drivers/nxp/ddr/phy-gen2/messages.h
@@ -13,7 +13,7 @@
 	const char *msg;
 };
 
-const static struct phy_msg messages_1d[] = {
+static const struct phy_msg messages_1d[] = {
 	{0x00000001,
 	 "PMU1:prbsGenCtl:%x\n"
 	},
@@ -1239,7 +1239,7 @@
 	},
 };
 
-const static struct phy_msg messages_2d[] = {
+static const struct phy_msg messages_2d[] = {
 	{0x00000001,
 	 "PMU0: Converting %d into an MR\n"
 	},