[PATCH v2 iwlwifi-next] iwlwifi: do not use __unused as variable name

On various systems __unused is a define to __attribute__((__unused__))
and yields compile errors as a result. Use __spare instead to describe
that these bits are "unused".

Sponsored by:  The FreeBSD Foundation
Signed-off-by: Bjoern A. Zeeb <redacted>
---
changes since v1 - reduce diff context
---
  drivers/net/wireless/intel/iwlwifi/iwl-fh.h | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h
index aaa3b65be4e6..e6fd4941a4cb 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-fh.h

@@ -580,7 +580,7 @@ struct iwl_rb_status {
  	__le16 closed_fr_num;
  	__le16 finished_rb_num;
  	__le16 finished_fr_nam;
-	__le32 __unused;
+	__le32 __spare;
  } __packed;