[sonic-utilities/config]: Fix Config Command for Change Port Speed (s…

…onic-net#398)

* Fix Unexpected keyword argument when changing port speed using config
command

Signed-off-by: gene_kuo@edge-core.com

Fixes sonic-net#397

config/main.py

@@ -825,7 +825,7 @@ def shutdown(ctx):
 @click.pass_context
 @click.argument('interface_speed', metavar='<interface_speed>', required=True)
 @click.option('-v', '--verbose', is_flag=True, help="Enable verbose output")
-def speed(ctx, verbose):
+def speed(ctx, interface_speed, verbose):
     """Set interface speed"""
     interface_name = ctx.obj['interface_name']