linux-gen: pktio: quell array bounds warning in pedantic compilation

Quell "array subscript 0 is outside array bounds of ‘__u32[]’" warning
when compiling with GCC 13.1.1 and -Wpedantic.

Signed-off-by: Jere Leppänen <jere.leppanen@nokia.com>

platform/linux-generic/pktio/stats/ethtool_stats.c

@@ -40,7 +40,10 @@ static struct ethtool_gstrings *get_stringset(int fd, struct ifreq *ifr)
 	hdr.sset_mask = 1ULL << ETH_SS_STATS;
 	ifr->ifr_data = (void *)&hdr;
 	if (ioctl(fd, SIOCETHTOOL, ifr) == 0) {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
 		len = hdr.sset_mask ? hdr.data[0] : 0;
+#pragma GCC diagnostic pop
 	} else if (errno == EOPNOTSUPP && drvinfo_offset != 0) {
 		/* Fallback for old kernel versions */
 		drvinfo.cmd = ETHTOOL_GDRVINFO;