Move at91cap9 specific files to at91sam9 directory

AT91CAP9 and AT91SAM9 SoCs are very close hardware wise, so a
common infrastructure can be used. Let this infrastructure be
named after the AT91SAM9 family, and move the existing AT91CAP9
files to the new place.

Signed-off-by: Stelian Pop <stelian@popies.net>
diff --git a/net/eth.c b/net/eth.c
index 16a6dcb..1a98a91 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -63,7 +63,7 @@
 extern int atngw100_eth_initialize(bd_t *);
 extern int mcffec_initialize(bd_t*);
 extern int mcdmafec_initialize(bd_t*);
-extern int at91cap9_eth_initialize(bd_t *);
+extern int at91sam9_eth_initialize(bd_t *);
 
 #ifdef CONFIG_API
 extern void (*push_packet)(volatile void *, int);
@@ -285,7 +285,7 @@
 	mcdmafec_initialize(bis);
 #endif
 #if defined(CONFIG_AT91CAP9)
-	at91cap9_eth_initialize(bis);
+	at91sam9_eth_initialize(bis);
 #endif
 
 	if (!eth_devices) {