LU-6110 build: Fix autogen.sh failure

LU-6110 build: Fix autogen.sh failure

commit bca975c7fa261ffb926e8a18d5869b886c65f447
removed lustre/include/linux,
but failed to do so in all relevant places,
thus running autogen.sh fails:
configure.ac:24: required file `lustre/include/linux/Makefile.in' not
found

Fix by removing lustre/include/linux from m4 file

Signed-off-by: Yan Burman <yanb@mellanox.com>
Change-Id: I9fccbe5895779dfd1bab66341aa6b094e33f604f
Reviewed-on: http://review.whamcloud.com/13345
Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Tested-by: Oleg Drokin <oleg.drokin@intel.com>