ssa.c: Commentary change

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: Cosmetic changes

Mostly formatting
Some variable reordering

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: Don't read after incomplete write on internal socketpair

in ssa_upstream_query_db and ssa_ctrl_stop

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