do not statically link kmod against its own libraries

https://bugs.gentoo.org/493630
http://thread.gmane.org/gmane.linux.kernel.modules/1206

--- a/Makefile.in
+++ b/Makefile.in
@@ -817,7 +817,7 @@
 @BUILD_TOOLS_TRUE@		     tools/static-nodes.c
 
 @BUILD_TOOLS_TRUE@tools_kmod_LDADD = libkmod/libkmod-util.la \
-@BUILD_TOOLS_TRUE@		   libkmod/libkmod-internal.la
+@BUILD_TOOLS_TRUE@		   libkmod/libkmod.la
 
 
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