Added needed patch for ppp to compile with filter enable

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3148 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/ppp/patches/300-filter-pcap-includes-lib.patch

@@ -0,0 +1,14 @@
+diff -urN ppp-2.4.3.orig/pppd/Makefile.linux ppp-2.4.3/pppd/Makefile.linux
+--- ppp-2.4.3.orig/pppd/Makefile.linux	2006-02-05 20:13:06.000000000 +0100
++++ ppp-2.4.3/pppd/Makefile.linux	2006-02-05 20:24:22.000000000 +0100
+@@ -172,8 +172,8 @@
+ 
+ ifdef FILTER
+ ifneq ($(wildcard /usr/include/pcap-bpf.h),)
+-LIBS    += -lpcap
+-CFLAGS  += -DPPP_FILTER
++LIBS    += -lpcap -L$(STAGING_DIR)/usr/lib
++CFLAGS  += -DPPP_FILTER -I$(STAGING_DIR)/usr/include
+ endif
+ endif
+