CVE-2024-49961 media: i2c: ar0521: Use cansleep version of gpiod_set_value()

In the Linux kernel, the following vulnerability has been resolved: media: i2c: ar0521: Use cansleep version of gpiodsetvalue If we use GPIO reset from I2C port expander, we must use cansleep variant of GPIO functions. This was not done in ar0521poweron/ar0521poweroff functions. Let's fix that...