wavemon: patch configure to leave room for our CFLAGS

The configure script was hardcoding CFLAGS, remove that

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@39840 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/wavemon/patches/001-cflags_override.patch

@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -2174,8 +2174,6 @@ cat >>confdefs.h <<_ACEOF
+ _ACEOF
+ 
+ 
+-CFLAGS="-O2 -Wall"
+-
+ # wavemon is only supported on Linux, warn user about futile compilations
+ # Make sure we can run config.sub.
+ $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||