pwm: Use %u to printf unsigned int pwm_chip::npwm and pwm_chip::id

pwm: Use %u to printf unsigned int pwm_chip::npwm and pwm_chip::id

[ Upstream commit 5f7ff902e7f324c10f2b64c5ba2e5e2d0bc4e07e ]

%u is the right conversion specifier to emit an unsigned int value.

Fixes: 62099abf67a2 ("pwm: Add debugfs interface")
Fixes: 0360a4873372 ("pwm: Mention PWM chip ID in /sys/kernel/debug/pwm")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20251006133525.2457171-2-u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>