hal: add support for configurable mono speaker

Add devices to support right speaker as mono device along with
speaker protection support. It also provides option to switch
between left and right speaker using setparameter.

CRs-Fixed: 1051075
Change-Id: Iac140448bd6f49444d22a9e496b71e3502dfaefe
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
diff --git a/hal/platform_api.h b/hal/platform_api.h
index cdb7c5c..7dcd1b6 100644
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -145,6 +145,7 @@
 bool platform_can_enable_spkr_prot_on_device(snd_device_t snd_device);
 int platform_get_spkr_prot_acdb_id(snd_device_t snd_device);
 int platform_get_spkr_prot_snd_device(snd_device_t snd_device);
+int platform_get_vi_feedback_snd_device(snd_device_t snd_device);
 int platform_spkr_prot_is_wsa_analog_mode(void *adev);
 bool platform_can_split_snd_device(void *platform,
                                    snd_device_t snd_device,