lkm: add linuxkm/include.am, and include it in Makefile.am.

Makefile.am

@@ -172,6 +172,9 @@ include testsuite/include.am
 include tests/include.am
 include sslSniffer/sslSnifferTest/include.am
 include rpm/include.am
+if BUILD_LINUXKM
+include linuxkm/include.am
+endif
 
 # Exclude references to non-DFSG sources from build files
 if !BUILD_DISTRO

linuxkm/include.am

@@ -0,0 +1,9 @@
+# vim:ft=automake
+# included from Top Level Makefile.am
+# All paths should be given relative to the root
+
+EXTRA_DIST += m4/ax_linuxkm.m4 \
+	      linuxkm/Kbuild \
+	      linuxkm/Makefile \
+	      linuxkm/get_thread_size.c \
+	      linuxkm/module_hooks.c