ARM: dts: msm: Update the vifeed back routing

Codec clock should be enabled when vifeedback path for speaker
protection is enabled.
Change adds the routing entries to enable the codec clock for
speaker protection vi capture feedback path for 8974.

Change-Id: I6230f5a40a20a3d5e81d194a622083ece8873b79
CRs-fixed: 591723
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>