linux-yocto/5.15: arm: poky-tiny cleanup and fixes

linux-yocto/5.15: arm: poky-tiny cleanup and fixes

Integrating the following commit(s) to linux-yocto/.:

    20dcef87913 versatile: restore explicit CONFIG_ARM
    8e63ec2fc66 qemuarm64: cleanup for tiny enablement
    fa720c009a8 arm-versatile-926ejs: reorg for tiny and preempt-rt
    7febff689a8 qemuarma15: fix tiny and preempt-rt
    7720c50d622 tiny: make more generic
    f052e84eafa pci: remove CONFIG_PCI_MMCONFIG
    917043019b4 virtio: Add prereqs for tiny
    da919d67b1a common-pc: add CONFIG_ISA_DMA_API for tiny
    1a3a497c472 x2apic: enable iommu for tiny
    63e25b57177 features/security: Move x86_64 configs to separate file

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>