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/common/cmd_mfsl.c b/common/cmd_mfsl.c
index db2a994..6470bac 100644
--- a/common/cmd_mfsl.c
+++ b/common/cmd_mfsl.c
@@ -389,7 +389,7 @@
 /***************************************************/
 
 U_BOOT_CMD (frd, 3, 1, do_frd,
-		"frd     - read data from FSL\n",
+		"read data from FSL",
 		"- [fslnum [0|1|2|3]]\n"
 		" 0 - non blocking data read\n"
 		" 1 - non blocking control read\n"
@@ -398,7 +398,7 @@
 
 
 U_BOOT_CMD (fwr, 4, 1, do_fwr,
-		"fwr     - write data to FSL\n",
+		"write data to FSL",
 		"- [fslnum [0|1|2|3]]\n"
 		" 0 - non blocking data write\n"
 		" 1 - non blocking control write\n"
@@ -406,7 +406,7 @@
 		" 3 - blocking control write\n");
 
 U_BOOT_CMD (rspr, 3, 1, do_rspr,
-		"rspr    - read/write special purpose register\n",
+		"read/write special purpose register",
 		"- reg_num [write value] read/write special purpose register\n"
 		" 1 - MSR - Machine status register\n"
 		" 3 - EAR - Exception address register\n"