kern/test: add wip qemu-virt board support to mesosphere

ams-libs: move -Wno-invalid-offsetof to cxxflags, not cflags

ams-libs: use nintendo_nx identifier for source file compat bpmp<->ccplex

ams: improve offsetof style consistency

strat: use ams::Main() instead of main(argc, argv)

strat: build sysmodules with -Wextra/-Werror

fusee_cpp: implement mtc erista patram writes

fusee_cpp: tweaks, now completes SecureInitialize on hardware

fusee-cpp: add basic structural stubs

build: use DWARFv4 explicitly for IDA compatibility with debug elfs

exo: revert section sorting

exo: sort sections by alignment

sm: update to excise unnecessary library code

exo: remove duplicate flags

exo: fix for newer binutils

exo/meso: update for gcc 11 compatibility

stratosphere: discard unnecessary .eh_frame segment

ams: resolve source dir inconsistency

kern: build as -Os instead of -O2

libexo/sc7fw: support release/debug/audit

sdmmc: implement driver suitable for fs + bootloader ...

* sdmmc: begin skeletoning sdmmc driver

* sdmmc: add most of SdHostStandardController

* sdmmc: implement most of SdmmcController

* sdmmc: Sdmmc2Controller

* sdmmc: skeleton implementation of Sdmmc1Controller

* sdmmc: complete abstract logic for Sdmmc1 power controller

* sdmmc: implement gpio handling for sdmmc1-register-control

* sdmmc: implement pinmux handling for sdmmc1-register-control

* sdmmc: fix building for arm32 and in stratosphere context

* sdmmc: implement voltage enable/set for sdmmc1-register-control

* util: move T(V)SNPrintf from kernel to util

* sdmmc: implement BaseDeviceAccessor

* sdmmc: implement MmcDeviceAccessor

* sdmmc: implement clock reset controller for register api

* sdmmc: fix bug in WaitWhileCommandInhibit, add mmc accessors

* exo: add sdmmc test program

* sdmmc: fix speed mode extension, add CheckMmcConnection for debug

* sdmmc: add DeviceDetector, gpio: implement client api

* gpio: modernize client api instead of doing it the lazy way

* sdmmc: SdCardDeviceAccessor impl

* sdmmc: update test program to read first two sectors of sd card

* sdmmc: fix vref sel

* sdmmc: finish outward-facing api (untested)

* ams: changes for libvapours including tegra register defs

* sdmmc: remove hwinit

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>

arm64: set -march in cpu specific configuration

kern: implement svc trace

exo: build with -Wextra

kern: build with -Wextra

libstrat: fix building of source/os/*

ams: add support for cpu-extension specific source files

ams: update build system to add generic-fallback support

kern: build without unwind tables for lto