post_proc: Enable effects param in DSP to start effect

-During switch to tunnel playback, offload effects-flags remain
disabled. This stops effects being applied on tunnel playback.
-Send effects enable params to DSP to start effects during switch.

Change-Id: Ibe1e50b41ca25b51537e4a0ad80dbd5184379133
CRs-Fixed: 593509
diff --git a/post_proc/bass_boost.c b/post_proc/bass_boost.c
index c64ba6b..c724b58 100644
--- a/post_proc/bass_boost.c
+++ b/post_proc/bass_boost.c
@@ -239,6 +239,11 @@
     ALOGV("%s", __func__);
     bass_ctxt->ctl = output->ctl;
     ALOGV("output->ctl: %p", output->ctl);
+    if (offload_bassboost_get_enable_flag(&(bass_ctxt->offload_bass)))
+        if (bass_ctxt->ctl)
+            offload_bassboost_send_params(bass_ctxt->ctl, bass_ctxt->offload_bass,
+                                          OFFLOAD_SEND_BASSBOOST_ENABLE_FLAG |
+                                          OFFLOAD_SEND_BASSBOOST_STRENGTH);
     return 0;
 }