Fix counterstike against promoting Kirin

Fix counterstike against promoting Kirin

The ban on capturing Lion by non-Lion nonly applies to a Lion elsewhere,
never to recapturing a Kirin that captured a Lion and promoted in the process.
This exemption is now implemented by passing the capture square in
promoSuppress for Ky x Ln+, and testing that on a subsequent other x Ln.
This is harmless, as +Ky cannot promote anyway.