soc: kunpeng_hccs: Migrate to use generic PCC shmem related macros

Use the newly defined common and generic PCC shared memory region
related macros in this driver to replace the locally defined ones.

Cc: Huisong Li <lihuisong@huawei.com>
Reviewed-by: Huisong Li <lihuisong@huawei.com>
Link: https://lore.kernel.org/r/20230927-pcc_defines-v2-4-0b8ffeaef2e5@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Author: sudeep-holla

drivers/soc/hisilicon/kunpeng_hccs.c

@@ -31,10 +31,6 @@
 
 #include "kunpeng_hccs.h"
 
-/* PCC defines */
-#define HCCS_PCC_SIGNATURE_MASK		0x50434300
-#define HCCS_PCC_STATUS_CMD_COMPLETE	BIT(0)
-
 /*
  * Arbitrary retries in case the remote processor is slow to respond
  * to PCC commands
@@ -187,7 +183,7 @@ static int hccs_check_chan_cmd_complete(struct hccs_dev *hdev)
 	 * deadline_us(timeout_us) until PCC command complete bit is set(cond)
 	 */
 	ret = readw_poll_timeout(&comm_base->status, status,
-				 status & HCCS_PCC_STATUS_CMD_COMPLETE,
+				 status & PCC_STATUS_CMD_COMPLETE,
 				 HCCS_POLL_STATUS_TIME_INTERVAL_US,
 				 cl_info->deadline_us);
 	if (unlikely(ret))
@@ -208,7 +204,7 @@ static int hccs_pcc_cmd_send(struct hccs_dev *hdev, u8 cmd,
 	int ret;
 
 	/* Write signature for this subspace */
-	tmp.signature = HCCS_PCC_SIGNATURE_MASK | hdev->chan_id;
+	tmp.signature = PCC_SIGNATURE | hdev->chan_id;
 	/* Write to the shared command region */
 	tmp.command = cmd;
 	/* Clear cmd complete bit */