[PATCH v2 02/11] clk: mediatek: apmixed: Drop error message from clk_register() failure

[Miles Chen]

> mtk_clk_register_ref2usb_tx() prints an error message if clk_register()
> fails. It doesn't if kzalloc() fails though. The caller would then tack
> on its own error message to handle this.
> 
> Also, All other clk registration functions in the MediaTek clk library
> leave the error message printing to the bulk registration functions,
> while the helpers that register individual clks just return error codes.
> 
> Drop the error message that is printed when clk_register() fails in
> mtk_clk_register_ref2usb_tx() to make its behavior consistent both
> across its failure modes, and with the rest of the driver library.
> 
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>

Reviewed-by: Miles Chen <miles.chen at mediatek.com>