brcm47xx: update target to kernel 3.3

SVN-Revision: 31599

target/linux/brcm47xx/Makefile

@@ -11,7 +11,7 @@ BOARD:=brcm47xx
 BOARDNAME:=Broadcom BCM947xx/953xx
 FEATURES:=squashfs usb pcmcia
 
-LINUX_VERSION:=3.2.16
+LINUX_VERSION:=3.3.4
 
 include $(INCLUDE_DIR)/target.mk
 DEFAULT_PACKAGES += wpad-mini kmod-switch kmod-diag nvram