core/configs: Change IRQ line access control modeling

core/configs: Change IRQ line access control modeling

Change the configuration file to manage access to IRQ lines at IRQ chip
level. Each IRQ chip config entry consists an address, typically the
chip's MMIO address, a unique identifier that will be used for interrupt
remapping on x86, and a bitmap controlling access to individual IRQ pins
of that chip. This will simplify access control checks to IRQ chips.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>