[PATCH] sata_sis: Fix typo in sata port2 initialisation

This patch fixes a nasty typo I introduced in my previous patch (commit
f2c853bc). The right offset of the
second port in pure sata mode is 64 and not 0x64.
Thanks to Martin Schuster for pointing this to me

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
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Signed-off-by: Jeff Garzik <jgarzik@pobox.com>