slim_msm: Provision to support RX using interrupts if BAM fails

If BAM registration fails or BAM pipe connection for slimbus-RX pipe
fails, driver falls back on using RX through CSRs and interrupts.

Change-Id: Icb621468a227cb826db43695fa74b30452fbf9c1
Signed-off-by: Sagar Dharia <sdharia@codeaurora.org>
1 file changed