scsi: mpi3mr: Fix W=1 compilation warnings

Fix for the following W=1 compilation warning:

  'strncpy' output may be truncated copying 16 bytes from a string of
  length 64

Link: https://lore.kernel.org/r/20210707081756.20922-1-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/mpi3mr/mpi3mr_fw.c

@@ -2607,14 +2607,13 @@ static int mpi3mr_issue_iocinit(struct mpi3mr_ioc *mrioc)
 		goto out;
 	}
 	drv_info->information_length = cpu_to_le32(data_len);
-	strncpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature));
-	strncpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name));
-	drv_info->os_name[sizeof(drv_info->os_name) - 1] = 0;
-	strncpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version));
-	drv_info->os_version[sizeof(drv_info->os_version) - 1] = 0;
-	strncpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name));
-	strncpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version));
-	strncpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE, sizeof(drv_info->driver_release_date));
+	strscpy(drv_info->driver_signature, "Broadcom", sizeof(drv_info->driver_signature));
+	strscpy(drv_info->os_name, utsname()->sysname, sizeof(drv_info->os_name));
+	strscpy(drv_info->os_version, utsname()->release, sizeof(drv_info->os_version));
+	strscpy(drv_info->driver_name, MPI3MR_DRIVER_NAME, sizeof(drv_info->driver_name));
+	strscpy(drv_info->driver_version, MPI3MR_DRIVER_VERSION, sizeof(drv_info->driver_version));
+	strscpy(drv_info->driver_release_date, MPI3MR_DRIVER_RELDATE,
+	    sizeof(drv_info->driver_release_date));
 	drv_info->driver_capabilities = 0;
 	memcpy((u8 *)&mrioc->driver_info, (u8 *)drv_info,
 	    sizeof(mrioc->driver_info));