include/minic.h some more #defines (will be used by ppsi)

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

include/minic.h

@@ -4,6 +4,9 @@
 #include "types.h"
 
 #define ETH_HEADER_SIZE 14
+#define ETH_ALEN 6
+#define ETH_P_1588     0x88F7          /* IEEE 1588 Timesync */
+
 #define WRPC_FID				0
 
 void minic_init();