LU-7558 ptlrpc: connect vs import invalidate race

LU-7558 ptlrpc: connect vs import invalidate race

Connect can't be sent while import invalidate is
in progress, thus it leaves the import in not
initialized state.

Don't allow reconnect in evicted state.

Change-Id: I79a1a1eb05fede30e100ba09b6f3f98636a46213
Cray-bug-id: LUS-6322
Signed-off-by: Andriy Skulysh <c17819@cray.com>
Reviewed-by: Alexander Boyko <c17825@cray.com>
Reviewed-by: Andrew Perepechko <c17827@cray.com>
Reviewed-on: https://review.whamcloud.com/33718
Tested-by: Jenkins
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Mike Pershin <mpershin@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>