LU-17394 libcfs: print cfs_fail_val when fail_loc hit

LU-17394 libcfs: print cfs_fail_val when fail_loc hit

Add some more information to the console message when fail_loc is hit.

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I99fe4524f3764b068c96965c0b86bd4d7b341707
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/53585
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Alexander Boyko <alexander.boyko@hpe.com>