LU-18692 build: add -f option to libtoolize

LU-18692 build: add -f option to libtoolize

If libtool and aclocal.m4 were generated by different
versions of build tools, then building Lustre codes
will hit libtool version mismatch error.

This patch adds -f option to libtoolize in autogen.sh
to replace existing libtool files by default.

Change-Id: I8f4786eccfdf38b3554393d7f9d6f52613a3a3f5
Test-Parameters: trivial
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/57965
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Minh Diep <mdiep@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>