bcma: move PCI IRQ control function to host specific code

This function isn't really related to any bus core. It touches PCI
device config registers only, so move it to the (PCI) host file.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --cc drivers/bcma/driver_pci.c
Simple merge

diff --cc drivers/bcma/host_pci.c
Simple merge

diff --cc drivers/net/wireless/b43/main.c
Simple merge

diff --cc drivers/net/wireless/brcm80211/brcmsmac/main.c
Simple merge

diff --cc include/linux/bcma/bcma.h
Simple merge

diff --cc include/linux/bcma/bcma_driver_pci.h
Simple merge