When command and data interrupts have been aggregated together, don't do
the data-completed processing if a command-error interrupt is also asserted.

Reviewed by:	Michal Meloun <meloun@miracle.cz>


git-svn-id: svn+ssh://svn.freebsd.org/base/head@275949 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f