msm: ADSPRPC: Use PD type enums instead of magic numbers

Currently PD type is getting updated with some magic numbers. Add
enum with different PD type information and use these types instead
of magic numbers for better code readability.

Change-Id: I20eb03726cabfcc88589be215c3c967b608a9cdb
Acked-by: Ekansh Gupta <ekangupt@qti.qualcomm.com>
Signed-off-by: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>

dsp/adsprpc_shared.h

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 #ifndef ADSPRPC_SHARED_H
 #define ADSPRPC_SHARED_H
@@ -678,6 +678,13 @@ enum fastrpc_msg_type {
 	KERNEL_MSG_WITH_NONZERO_PID,
 };
 
+/* Fastrpc remote pd type */
+enum fastrpc_remote_pd_type {
+	FASTRPC_ROOT_PD = 0,
+	FASTRPC_USER_PD,
+	FASTRPC_SENSORS_PD,
+};
+
 #define DSPSIGNAL_TIMEOUT_NONE 0xffffffff
 #define DSPSIGNAL_NUM_SIGNALS 1024