LU-12756 lnet: Refactor lnet_find_best_lpni_on_net

LU-12756 lnet: Refactor lnet_find_best_lpni_on_net

Replace lnet_send_data argument.

Test-Parameters: trivial
Signed-off-by: Chris Horn <hornc@cray.com>
Change-Id: Ic346eaf6870f2a7c68c7f4c45d424f4f924370d9
Reviewed-on: https://review.whamcloud.com/36534
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alexandr Boyko <c17825@cray.com>
Reviewed-by: Alexey Lyashkov <c17817@cray.com>
Reviewed-by: Amir Shehata <ashehata@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>