ASoC: core: Update FE dpcm state to trigger BE routing

Ensure the FE dpcm runtime_update is set properly in order
to trigger BE open, prepare and start.

Change-Id: I809e6d5fdffac547ea9b67b178df4e59a752af87
Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
Signed-off-by: Eric Laurent <elaurent@google.com>
Git-commit: 31e58eb682ac80557f676c3413bfb8ea4d520c64
Git-repo: https://android.googlesource.com/kernel/msm


[dhakumar@codeaurora.org: resolved merge conflicts]
Signed-off-by: Dhananjay Kumar <dhakumar@codeaurora.org>