libtcmu: cleanup from log init failures
libtcmu: cleanup from log init failures

Cleanup all resouces when tcmu_log_initialize fails.

Also rename log_initialize to reflect it is an internal function.

Signed-off-by: Mike Christie <39daeb1549a929782e38aa87c4e3da7f3844b09a@redhat.com>

agrover/tcmu-runner,open-iscsi/tcmu-runner,open-iscsi/tcmu-runner