pwm: bcm2835: Fix NPD in suspend/resume

When 119a508c ("pwm: bcm2835: Add support for suspend/resume") was
sent out on October 11th,, there was still a call to
platform_set_drvdata() which would ensure that the driver private data
structure could be used in bcm2835_pwm_{suspend,resume}.

A cleanup now merged as commit commit 2ce7b7f6 ("pwm: bcm2835:
Simplify using devm functions") removed that call which would now cause
a NPD in bcm2835_pwm_{suspend,resume} as a consequence.

Fixes: 119a508c ("pwm: bcm2835: Add support for suspend/resume")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/linux-pwm/20231113164632.2439400-1-florian.fainelli@broadcom.comSigned-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

drivers/pwm/pwm-bcm2835.c

@@ -155,6 +155,8 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
 	pc->chip.ops = &bcm2835_pwm_ops;
 	pc->chip.npwm = 2;
 
+	platform_set_drvdata(pdev, pc);
+
 	ret = devm_pwmchip_add(&pdev->dev, &pc->chip);
 	if (ret < 0)
 		return dev_err_probe(&pdev->dev, ret,