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.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Author: vadimp-nvidia

drivers/platform/x86/mlx-platform.c

@@ -6008,10 +6008,11 @@ 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;
 	}
 
+	if (shift > 0)
+		mlxplat_hotplug->shift_nr = shift;
+
 	return 0;
 }