Change in coreboot[master]: drivers/usb/acpi: Create function to get PLD information

[Furquan Shaikh (Code Review)]

Attention is currently required from: Maulik V Vaghela, Tim Wawrzynczak, John Zhao.
Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/56024 )

Change subject: drivers/usb/acpi: Create function to get PLD information
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Patch Set 6:

(1 comment)

File src/drivers/usb/acpi/usb_acpi.c:

https://review.coreboot.org/c/coreboot/+/56024/comment/c4c8cc1f_6e70d967 
PS4, Line 129: static struct acpi_pld pld;
> True Furquan... […]

We can't just remove `static` keyword. Instead, the caller will have to pass in a structure that will be filled by this function. Else, `pld` lives on the stack which gets destroyed on return from this function and the caller ends up referencing an invalid object.