b43: Move code from nphy.* to phy_n.*

Sourcecode files for PHY code are named by phy_XXX.{c,h}
where XXX is the PHY type.
Move the N-PHY code to match the other files.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/main.c

@@ -46,7 +46,7 @@
 #include "debugfs.h"
 #include "phy_common.h"
 #include "phy_g.h"
-#include "nphy.h"
+#include "phy_n.h"
 #include "dma.h"
 #include "pio.h"
 #include "sysfs.h"