ath10k: wmi: remove array of flexible structures

I updated to sparse v0.6.4 and it warns:

drivers/net/wireless/ath/ath10k/wmi.c: note: in included file (through drivers/net/wireless/ath/ath10k/core.h):
drivers/net/wireless/ath/ath10k/wmi.h:3481:34: warning: array of flexible structures

Fix it by changing the type to u8 array, in struct wmi_phyerr_hdr_arg it's
stored as a void pointer anyway.

Compile tested only.

Signed-off-by: Kalle Valo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: kvalo

drivers/net/wireless/ath/ath10k/wmi.h

@@ -3478,7 +3478,9 @@ struct wmi_phyerr_event {
 	__le32 num_phyerrs;
 	__le32 tsf_l32;
 	__le32 tsf_u32;
-	struct wmi_phyerr phyerrs[];
+
+	/* array of struct wmi_phyerr */
+	u8 phyerrs[];
 } __packed;
 
 struct wmi_10_4_phyerr_event {