ASoC: msm: update routing driver for host less.

Update primary mi2s port mixer control with the internal
FM Tx and tertiary MI2S Tx interface.
Remove redundant entries for primary mi2s hostless FE.

Change-Id: Iad04e136f7c4f5a422053954f4a92197fb4a7f16
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>