Added Am79C970A chip id to pcnet

Signed-off-by: Vlad Lungu <vlad@comsys.ro>
diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 4e270c9..b5b4518 100644
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -260,6 +260,9 @@
        return -1;
     chip_version = (chip_version >> 12) & 0xffff;
     switch (chip_version) {
+    case 0x2621:
+	chipname = "PCnet/PCI II 79C970A"; /* PCI */
+	break;
 #ifdef CONFIG_PCNET_79C973
     case 0x2625:
 	chipname = "PCnet/FAST III 79C973"; /* PCI */