libpcap: USB support by default if usbmon is enabled

If building usbmon support then you'll likely want to have
USB support in libpcap as well.

Signed-off-by: Bjørn Mork <bjorn@mork.no>

SVN-Revision: 47265

package/libs/libpcap/Config.in

@@ -4,7 +4,7 @@ menu "Configuration"
 config PCAP_HAS_USB
 	bool "Include USB support"
 	depends on PACKAGE_kmod-usb-core
-	default n
+	default PACKAGE_kmod-usbmon
 
 config PCAP_HAS_BT
 	bool "Include bluetooth support"