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/trab/cmd_trab.c b/board/trab/cmd_trab.c
index 5020d60..7e2a672 100644
--- a/board/trab/cmd_trab.c
+++ b/board/trab/cmd_trab.c
@@ -258,7 +258,7 @@
 
 U_BOOT_CMD(
 	burn_in,	1,	1,	do_burn_in,
-	"burn_in - start burn-in test application on TRAB\n",
+	"start burn-in test application on TRAB",
 	"\n"
 	"    -  start burn-in test application\n"
 	"       The burn-in test could took a while to finish!\n"
@@ -292,7 +292,7 @@
 
 U_BOOT_CMD(
 	dip,	1,	1,	do_dip,
-	"dip     - read dip switch on TRAB\n",
+	"read dip switch on TRAB",
 	"\n"
 	"    - read state of dip switch (S1) on TRAB board\n"
 	"      read sequence: 1-2-3-4; ON=1; OFF=0; e.g.: \"0100\"\n"
@@ -321,7 +321,7 @@
 
 U_BOOT_CMD(
 	vcc5v,	1,	1,	do_vcc5v,
-	"vcc5v   - read VCC5V on TRAB\n",
+	"read VCC5V on TRAB",
 	"\n"
 	"    - read actual value of voltage VCC5V\n"
 );
@@ -346,7 +346,7 @@
 
 U_BOOT_CMD(
 	c_temp,	1,	1,	do_contact_temp,
-	"c_temp  - read contact temperature on TRAB\n",
+	"read contact temperature on TRAB",
 	"\n"
 	"    -  reads the onboard temperature (=contact temperature)\n"
 );
@@ -398,7 +398,7 @@
 
 U_BOOT_CMD(
 	bis,	1,	1,	do_burn_in_status,
-	"bis     - print burn in status on TRAB\n",
+	"print burn in status on TRAB",
 	"\n"
 	"    -  prints the status variables of the last burn in test\n"
 	"       stored in the onboard EEPROM on TRAB board\n"
@@ -886,7 +886,7 @@
 
 U_BOOT_CMD(
 	tlog,	2,	1,	do_temp_log,
-	"tlog    - log contact temperature [1/100 C] to console (endlessly)\n",
+	"log contact temperature [1/100 C] to console (endlessly)",
 	"delay\n"
 	"    - contact temperature [1/100 C] is printed endlessly to console\n"
 	"      <delay> specifies the seconds to wait between two measurements\n"