linux-phytec-ti

lguest: Override pcibios_enable_irq/pcibios_disable_irq to our stupid PIC

This lets us deliver interrupts for our emulated PCI devices using our
dumb PIC, and not emulate an 8259 and PCI irq mapping tables or whatever.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>