PCI: Support more than 6 PCI memory ranges.

Also use the standard kernel-wide constants for IO or memory space
rather than defining new ones, as well as the PCI constants for
address types.

Change-Id: Iad03f7666ad5121a5c9a398339aa1a191339a1d1
Reviewed-on: https://review.haiku-os.org/c/haiku/+/7336
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

pci/x86: Reimplement PCIe configuration mechanism using ECAM.

This allows us to drop the PCI-specific ACPI management entirely.
Confirmed working on x86, and the fallbacks when there is no ACPI
also still work.

Change-Id: I6dac9f5539f99b934b17b341634ce22628bc66fd
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6470
Reviewed-by: X512 <danger_mail@list.ru>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

pci/ecam: Fix reading config registers using ACPI method.

Also adjust end-address computation: we read up to 4 bytes past the offset.

Change-Id: I76343aba38cddb614394bd0dca1b36094b8dd85e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6469
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Reviewed-by: X512 <danger_mail@list.ru>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

busses/pci/ecam: add

Change-Id: I8decef75a2d7f30bb5d45fc4774037d6a92bc161
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6223
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>