Add ACM query timer configurability

The patch adds two new configuration parameters for ACM
when in SSA mode:
 * acm_query_timeout specifies timeout (in microseconds) before a query
 * acm_query_retries specifies number of query retries

Signed-off-by: Sasha Kotchubievsky <sashakot@mellanox.com>
Signed-off-by: Hal Rosenstock <hal@mellanox.com>