gpiolib: acpi: Add fwnode name to the GPIO interrupt label

It's ambiguous to have a device-related index in the GPIO interrupt
label as most of the devices will have it the same or very similar.
Extend label with fwnode name for better granularity. It significantly
reduces the scope of searching among devices.

Ex. (for the PCA9355 and MAX3111e chips connected to the system):

=== Before ===
PCA953x:	GpioInt() 0
MAX3111e:	GpioInt() 0

=== After ===
PCA953x:	NIO1 GpioInt(0)
MAX3111e:	URT0 GpioInt(0)

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>