msm: bam_dmux: provide fallback to bam_init()

bam_init() will fail in certain 9615 configurations.  Provide a fallback
function that will register the bam device for USB's use until a
refactor can be made.

Change-Id: I351a5c821856ea3789807e79a9a9e43e4a4ec54c
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
1 file changed