Fix SMC91111 regression: lpd7a40x build failures

Both lpd7a400 and lpd7a404 failed to compile because they had
CONFIG_SMC_USE_IOFUNCS defined:

examples/standalone/smc91111_eeprom.c:388: undefined reference to `SMC_outw'

Also removed an orphaned paren in lpd7a404.h

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/include/configs/lpd7a404.h b/include/configs/lpd7a404.h
index 102c0af..557f389 100644
--- a/include/configs/lpd7a404.h
+++ b/include/configs/lpd7a404.h
@@ -72,7 +72,7 @@
 #include <config_cmd_default.h>
 
 #ifndef USE_920T_MMU
-    #define CONFIG_CMD_PING)
+    #define CONFIG_CMD_PING
     #undef CONFIG_CMD_CACHE
 #else
     #define CONFIG_CMD_DATE