switches and put into separate functions
- always KASSERT(solocked(so)) even if not implemented
(for PRU_CONNECT2 only)
- replace calls to pr_generic() with req = PRU_CONNECT2 with calls to
pr_connect2()
- replace calls to pr_generic() with req = PRU_PURGEIF with calls to
pr_purgeif()
put common code from unp_connect2() (used by unp_connect() into
unp_connect1() and call out to it when needed
patch only briefly reviewed by rmind@
8cf67cc6d5