bcm63xx: Finalize support for DSL-274xB, rev C2.

The DSL-2740B/DSL-2741B rev C2 support was missing the board definition,
resulting in a kernel panic on boot.
This patch adds it, and also renames the generated image name to properly
reflect that it is for the revision C2, and for both the DSL-2740B and
DSL-2741B.

Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com>

SVN-Revision: 24188

target/linux/brcm63xx/base-files/lib/brcm63xx.sh

@@ -25,6 +25,11 @@ brcm63xx_detect() {
 		brcm63xx_has_reset_button="true"
 		ifname=eth1
 		;;
+	"bcm63xx/96358GW "*)
+		status_led="power:green"
+		brcm63xx_has_reset_button="true"
+		ifname=eth0
+		;;
 	*)
 		;;
 	esac