msm: mhi_dev: Switch to look-up table for UCI channel attributes

Use a look-up table to easily add or remove support for UCI SW channels.
The table includes the channel id, direction, TRB size, number of TRBs
and a boolean flag indicating whether to register a channel state change
notification with the MHI driver.

Change-Id: I8697c24ee559546e279eac51cf9365d7570612e3
Signed-off-by: Siva Kumar Akkireddi <sivaa@codeaurora.org>