brcm80211: fmac: changed two scan related structures

struct brcmf_scan_results contained a 1 element array, but in reality
the number of scan results can be 0 or more, as indicated by the
count field in the same struct. Array has be redefined to be 0 elements
length to indicate the array is purely for reference.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/dhd.h

@@ -466,14 +466,13 @@ struct brcmf_scan_results {
 	u32 buflen;
 	u32 version;
 	u32 count;
-	struct brcmf_bss_info_le bss_info_le[1];
+	struct brcmf_bss_info_le bss_info_le[];
 };
 
 struct brcmf_scan_results_le {
 	__le32 buflen;
 	__le32 version;
 	__le32 count;
-	struct brcmf_bss_info_le bss_info_le[1];
 };
 
 /* used for association with a specific BSSID and chanspec list */
@@ -493,10 +492,6 @@ struct brcmf_join_params {
 	struct brcmf_assoc_params_le params_le;
 };
 
-/* size of brcmf_scan_results not including variable length array */
-#define BRCMF_SCAN_RESULTS_FIXED_SIZE \
-	(sizeof(struct brcmf_scan_results) - sizeof(struct brcmf_bss_info_le))
-
 /* incremental scan results struct */
 struct brcmf_iscan_results {
 	union {
@@ -511,7 +506,7 @@ struct brcmf_iscan_results {
 
 /* size of brcmf_iscan_results not including variable length array */
 #define BRCMF_ISCAN_RESULTS_FIXED_SIZE \
-	(BRCMF_SCAN_RESULTS_FIXED_SIZE + \
+	(sizeof(struct brcmf_scan_results) + \
 	 offsetof(struct brcmf_iscan_results, results))
 
 struct brcmf_wsec_key {