[U-Boot] DHCP regression on 2009-06

[Michael Zaidman]

> I did verify that reverting the line exposes the bug that Michael fixed, ...

Ok, my target uses static IP configuration so I did not verified the DHCP
behavior. Now I did it. I also reverted the line and did DHCP afterwards
changed the subnet and did DHCP again. It works as expected.

diff --git a/net/net.c b/net/net.c
index 5637cf5..5e43dd1 100644
--- a/net/net.c
+++ b/net/net.c
@@ -388,6 +388,7 @@ restart:
 #if defined(CONFIG_CMD_DHCP)
                case DHCP:
                        BootpTry = 0;
+                       NetOurIP = 0;
                        DhcpRequest();          /* Basically same as BOOTP */
                        break;
 #endif