Command usage cleanup

Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/esd/cpci405/cpci405.c b/board/esd/cpci405/cpci405.c
index bd569a6..0aca825 100644
--- a/board/esd/cpci405/cpci405.c
+++ b/board/esd/cpci405/cpci405.c
@@ -689,7 +689,7 @@
 }
 U_BOOT_CMD(
 	onewire,	1,	1,	do_onewire,
-	"onewire - Read 1-write ID\n",
+	"Read 1-write ID",
 	NULL
 	);
 
@@ -750,7 +750,7 @@
 }
 U_BOOT_CMD(
 	getbpip,	1,	1,	do_get_bpip,
-	"getbpip - Update IP-Address with Backplane IP-Address\n",
+	"Update IP-Address with Backplane IP-Address",
 	NULL
 	);
 
@@ -786,7 +786,7 @@
 }
 U_BOOT_CMD(
 	setbpip,	2,	1,	do_set_bpip,
-	"setbpip - Write Backplane IP-Address\n",
+	"Write Backplane IP-Address",
 	NULL
 	);