b43: Remove EXPERIMENTAL designation from LP PHY selection

Since kernel 3.0, the problems with controlling b43 devices that have
low-power (LP) PHYs have been fixed and the EXPERIMENTAL designation
can be fixed.

This patch also fixes a typo as the device supports 802.11b communications.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/Kconfig

@@ -114,13 +114,13 @@ config B43_PHY_N
 	  affect other devices support and may provide support for basic needs.
 
 config B43_PHY_LP
-	bool "Support for low-power (LP-PHY) devices (EXPERIMENTAL)"
-	depends on B43 && EXPERIMENTAL
+	bool "Support for low-power (LP-PHY) devices"
+	depends on B43
 	default y
 	---help---
 	  Support for the LP-PHY.
 	  The LP-PHY is a low-power PHY built into some notebooks
-	  and embedded devices. It supports 802.11a/g
+	  and embedded devices. It supports 802.11a/b/g
 	  (802.11a support is optional, and currently disabled).
 
 config B43_PHY_HT