LU-17024 build: Make o2ib defines consistent

LU-17024 build: Make o2ib defines consistent

Move all O2IB specific configure tests to use HAVE_O2IB_
as the #define prefix.

Making the defines consistent removes some complexity
when cloning the o2ib sources to create in-kernel-o2iblnd

Test-Parameters: trivial
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: I82e72a993abc51ad260d880317da32a75929583b
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/51937
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>