kern: update Initialize0 for new changes

kern: swap tpidr_el1/cntv_cval_el0 as scratch vs exception stack

kern: update KInitialPageTable/KInitialPageAllocator

kern: bump svc limit to 192 from 128

kern: discard std::__cmpexch_failure_order(std::memory_order)

kern: fix KTrace buffer memory region type to match official kernel

kern: update Initialize0 to account for new ordering

kern: update KMemoryRegion to store last address rather than size

kern: set EL2 id registers on deprivilege

kern: improve KSynchronizationObject, kill KSynchronization

kern: Kill KCoreLocalRegion

kern: move scheduler/interrupt task manager out of core local region

kern: update KHardwareTimer, move out of KCoreLocalRegion

kern: use single interrupt manager object

Meso build targets (#1196) ...

* meso: commit wip (thanks fincs) rewrite to support build targets

* meso: commit mostly-working build system

* meso: correct .o dependencies in kernel/kldr

* libstratosphere: fix building after PCH related build changes

Co-authored-by: fincs <fincs@devkitpro.org>

kern: fix linear mapped dram -> pool partition check

kern: revamp KMemoryRegionType to better encode derivation hierarchies

kern: improve resource region size definitions/calculations

kern: use size instead of phys addr as sentinel value in InitializeCore linear mapping logic

kern: remove accidentally copypasted code

kern: make GetTargetFirmware a compile-time constant when not building for Switch

kern: correct flushing of init arguments

kern: refactor KMemoryLayout

kern: fix built-in usage for libc

kern: SvcChangeKernelTraceState

kern: build with -Wextra

ams: update build system to add generic-fallback support

kernel_ldr: use unoptimized memcpy before mmu bringup (closes #1102) ...

Before the MMU is up, all reads/writes must be aligned; the optimized
memcpy implementation does not guarantee all reads/writes it performs
are aligned.

This commit splits the libc impl to be separate for kernel/kernel_ldr,
and so now only kernel will use the optimized impl. This is safe,
as the MMU is brought up before kernel begins executing.

kern: fix dynamic calculation of slab heap size

kern: fix EL0 TLB conflict handler