net: phy: bcm7xxx: make array bcm7xxx_suspend_cfg static, reduces object code size

Don't populate the array bcm7xxx_suspend_cfg A on the stack, instead
make it static.  Makes the object code smaller by over 300 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   6351	   8146	      0	  14497	   38a1	drivers/net/phy/bcm7xxx.o

After:
   text	   data	    bss	    dec	    hex	filename
   5986	   8210	      0	  14196	   3774	drivers/net/phy/bcm7xxx.o
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/bcm7xxx.c

@@ -511,7 +511,7 @@ static int bcm7xxx_config_init(struct phy_device *phydev)
 static int bcm7xxx_suspend(struct phy_device *phydev)
 {
 	int ret;
-	const struct bcm7xxx_regs {
+	static const struct bcm7xxx_regs {
 		int reg;
 		u16 value;
 	} bcm7xxx_suspend_cfg[] = {