bedbug_860.c, bedbug_603e.c: Fix return type to silence compile warnings.

commit 47e26b1b "cmd_usage(): simplify return code handling" caused
the following compile warnings:

bedbug_860.c: In function 'bedbug860_do_break':
bedbug_860.c:73: warning: 'return' with a value, in function returning void
bedbug_860.c:121: warning: 'return' with a value, in function returning void

Fix the return type.

Actually these files could need some cleanup - commands should
return proper error codes, and there are coding style issues.
=> To be fixed later.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/arch/powerpc/cpu/mpc8xx/bedbug_860.c b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
index 83db035..c0016f7 100644
--- a/arch/powerpc/cpu/mpc8xx/bedbug_860.c
+++ b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
@@ -69,8 +69,10 @@
   int		which_bp;       /* Breakpoint number    */
   /* -------------------------------------------------- */
 
-  if (argc < 2)
-    return cmd_usage(cmdtp);
+  if (argc < 2) {
+    cmd_usage(cmdtp);
+    return;
+  }
 
   /* Turn off a breakpoint */
 
@@ -117,8 +119,10 @@
 
   /* Set a breakpoint at the address */
 
-  if( !isdigit( argv[ 1 ][ 0 ]))
-    return cmd_usage(cmdtp);
+  if( !isdigit( argv[ 1 ][ 0 ])) {
+    cmd_usage(cmdtp);
+    return;
+  }
 
   addr = simple_strtoul( argv[ 1 ], NULL, 16 ) & 0xfffffffc;