
Some clients require that write_index starts from nonzero value and index by payload instead of by dwords. Add support for device-tree configurable properties to control nonzero index start_index and indexing by payload for client tx queue read and write indices. Change-Id: I8942dc2d25a7d1cb0421cabd36c73a404ecd0134 Signed-off-by: Grace An <quic_gracan@quicinc.com>