Various PowerPC fixes

* Removed atomic operations placeholders for modern ones
* Fix chrpscript & hfsmaps location for CDBootImage (haiku-boot-cd target)
* add of_blocks & of_blocksize openfirmware call

Change-Id: Iaaddc2c566d108976ac5e5e08caea1fc59523e06
Reviewed-on: https://review.haiku-os.org/c/haiku/+/6987
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

enable EFI boot for 32-bit ISO image

Building EFI partition for 32-bit anyboot ISO image was disabled
in hrev52443 to fix issue #14656.

As haiku_loader.efi is now available for the x86 architecture
since hrev55917, we can re-enable building EFI system partition
for the 32-bit ISO.

We can also remove the build rules related to HAIKU_ANYBOOT_LEGACY
as it is not used any more.

Change-Id: I9c2c272bcd0f9c1a98ee6cea300374dc26b4818d
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5716
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

EFI: Fix some mis-located files

These were output to the root of the generated directory. There should
be nothing there except the final Haiku image.

Fixes #16750.

Change-Id: I132de939c70197c3f7cc306ac371965a0b7f38b3
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5346
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

boot/ppc: Cleanup paths, use hfs vs hfsplus

* Move assets to new boot directory
* -hfsplus not valid anymore on cdrtools 3.02
* Throw down some forth I saw in an *old* fedora 12
chrp script. If we ever target ppc64 it might be
handy someday. The text output also lets you know
the cd booted successfully.

Change-Id: I169d887fe8373de1719b98305d01b714f6f6bcbe
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4681
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>

Fix build for non-EFI architectures.

Change-Id: Ic2c8a9a64e63f4b844e964eb1066291d2edda7b3
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2343
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

ppc: Minor tweaks to get the arch compile again (WIP)

- Factor in types changes (introduction of intptr_t)
- Align JamFiles syntax with in progress architectures (arm/sparc)
- Xorriso doesn't support much of the mkisofs options (anymore ?)
- (After a correct bootstrap) one should be able to build @minimum-raw and haiku-boot-cd again
Change-Id: I4f779ad8f2210389fa9b7f7c0a98c3652a64c257
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1983
Reviewed-by: François Revol <revol@free.fr>

build: Restore a mechanism to build EFI-less anyboots and CDs.

This fixes the 32-bit build following the merge of multiple bootloaders
support.

Fixes #14656.

system/boot: Add support for multiple bootloaders

build: Drop specalized haiku-boot-cd-ppc target

* Now generated via haiku-boot-cd when target ppc

Change-Id: I1d4e83c4d95ebc18b0dab28ffb2af03db5dc9d1d

Move image definition jamfiles to build/jam/images

Move image definition jamfiles to build/jam/images