pci-quirks: fix MSI disabling on RS400-200 and RS480

Commit c0affe9d

 doesn't work because
the host controller is being quirked not a PCI bridge.  This patch
reverts the commit, rename quirk_svw_msi() to quirk_disable_all_msi()
and use it instead.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Matias Alejandro Torres <torresmat@gmail.com>
Cc: Greg K-H <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>