pinctrl: stm32: Add check for clk_enable()

Convert the driver to clk_bulk*() API.
Add check for the return value of clk_bulk_enable() to catch
the potential error.

Fixes: 05d8af44 ("pinctrl: stm32: Keep pinctrl block clock enabled when LEVEL IRQ requested")
Signed-off-by: Mingwei Zheng <zmw12306@gmail.com>
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250106220659.2640365-1-zmw12306@gmail.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>