platform: mellanox: mlx-platform: Move bus shift assignment out of the loop

Move assignment of bus shift setting out of the loop to avoid redundant
operation.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230208063331.15560-13-vadimp@nvidia.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/mlx-platform.c

@@ -6008,9 +6008,10 @@ static int mlxplat_mlxcpld_verify_bus_topology(int *nr)
 		shift = *nr - mlxplat_mux_data[i].parent;
 		mlxplat_mux_data[i].parent = *nr;
 		mlxplat_mux_data[i].base_nr += shift;
+	}
+
 	if (shift > 0)
 		mlxplat_hotplug->shift_nr = shift;
-	}
 
 	return 0;
 }