Fix build error #2097 (#2098)

Author: KangLin

Common++/src/OUILookup.cpp

@@ -92,7 +92,7 @@ namespace pcpp
 		}
 
 		// Get MAC address
-		uint8_t buffArray[6];
+		uint8_t buffArray[6] = { 0 };
 		addr.copyTo(buffArray);
 
 		const uint64_t macAddr = (((uint64_t)((buffArray)[5]) << 0) + ((uint64_t)((buffArray)[4]) << 8) +

Packet++/src/StpLayer.cpp

@@ -20,7 +20,7 @@ namespace pcpp
 
 	uint64_t StpLayer::macAddressToID(const pcpp::MacAddress& addr)
 	{
-		uint8_t value[6];
+		uint8_t value[6] = { 0 };
 		addr.copyTo(value);
 		return ((uint64_t(value[0]) << 40) | (uint64_t(value[1]) << 32) | (uint64_t(value[2]) << 24) |
 		        (uint64_t(value[3]) << 16) | (uint64_t(value[4]) << 8) | (uint64_t(value[5])));