asoc: msm: Update routing and FE DAI drivers

Update routing driver with port mixer commands between
primary and secondary interfaces to enable AFE lopback
between them. Update FE DAI driver to add hostless FEs
for primary/secondary Auxpcm and secondary MI2S.

Change-Id: I792e1cf4e0600d3b4726624e29e73e67828a3935
Signed-off-by: Viraja Kommaraju <virajak@codeaurora.org>
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>