b43: Use static const

Using static const generally increases object text and decreases data size.
It also generally decreases overall object size.

   text	   data	    bss	    dec	    hex	filename
   5502	     56	   1336	   6894	   1aee	drivers/net/wireless/b43/phy_common.o.new
   5511	     56	   1336	   6903	   1af7	drivers/net/wireless/b43/phy_common.o.old
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/phy_common.c

@@ -427,9 +427,11 @@ void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on)
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/Cordic */
 struct b43_c32 b43_cordic(int theta)
 {
-	u32 arctg[] = { 2949120, 1740967, 919879, 466945, 234379, 117304,
-		      58666, 29335, 14668, 7334, 3667, 1833, 917, 458,
-		      229, 115, 57, 29, };
+	static const u32 arctg[] = {
+		2949120, 1740967, 919879, 466945, 234379, 117304,
+		  58666,   29335,  14668,   7334,   3667,   1833,
+		    917,     458,    229,    115,     57,     29,
+	};
 	u8 i;
 	s32 tmp;
 	s8 signx = 1;