dt/bindings: qcom_adm: Fix channel specifiers

This patch removes the crci information from the dma channel property.  At least
one client device requires using more than one CRCI value for a channel.  This
does not match the current binding and the crci information needs to be removed.

Instead, the client device will provide this information via other means.

Signed-off-by: Andy Gross <agross@codeaurora.org>