arm: detect SoC timer from FDT for OMAP3 and PXA

Change-Id: Ib03a11f016cb937d748d2696a17158e17c86e317
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5522
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: David Karoly <karolyd577@gmail.com>

boot/efi: rework address-cells and size-cells handling

see Devicetree Specification,
section 2.3.5 #address-cells and #size-cells

The #address-cells and #size-cells properties may be used in any
device node that has children in the devicetree hierarchy and
describes how child device nodes should be addressed.

The #address-cells and #size-cells properties are not inherited from
ancestors in the devicetree. They shall be explicitly defined.

If missing, a client program should assume a default value of 2
for #address-cells, and a value of 1 for #size-cells.

Change-Id: Iafed49358540f8ac7aa673c3dc0191c9b580250b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5144
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>

boot/efi: introduce arch_dtb

Change-Id: Iff9e4198aca706097889faf51e9559fe551126ad
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4782
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>

efi/dtb: Fix dtb malloc failed for kernel args

kernel_args_malloc should be used after heap_init, or it will failed
when we new some region instance.

Change-Id: I457057b1e0ff6d4def9e101485e38fec1848d8de
Signed-off-by: Han Pengfei <pengphei@qq.com>
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3912
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

efi/dtb: Find potential FDT on UEFI

* Makes our UEFI bootloader somewhat FDT/DTB aware on all
architectures.
* Will report when an FDT is found, and provide it to kernels
that want it.

Change-Id: I90324fc0579a9c835e60568fa9b654c2df0aba27
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3543
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>