externals: Update dynarmic to latest

nvdec: Reuse allocated buffers and general cleanup

Updates dynarmic to its latest commit. Includes a fix for argument
limits while compiling with Clang 12.

Revert "Port citra-emu/citra#5123: "SDL: Disable hidapi drivers due to compatibility problems with certain controllers""

Revert "Port citra-emu/citra#5123: "SDL: Disable hidapi drivers due to compatibility problems with certain controllers""

common/cityhash: Use common types

cmake: Update FFmpeg to 4.3.1

Allow sharing return types with the rest of the code base. For example,
we use 'u128 = std::array<u64, 2>', meanwhile Google's code uses
'uint128 = std::pair<u64, u64>'.

While we are at it, use size_t instead of std::size_t.

core: Optimize core timing utility functions to avoid unnecessary math

Improve mouse panning

yuzu/configure_filesystem: Remove "Select Cache Directory" option

vk_rasterizer: Fix loading shader addresses twice

This was recently introduced on a wrongly rebased commit.

Port citra-emu/citra#5123: "SDL: Disable hidapi drivers due to compatibility problems with certain controllers"

- Avoids a lot of unnecessary 128-bit math for imperceptible accuracy.

fixed_pipeline_cache: Use dirty flags to lazily update key

core/CMakeLists: Add web_types.h

HID: Implement GC controller in game

debugger: controller: Add access key

audren: Implement I3dl2Reverb

Adds the access key to the Controller P1 selection at View -> Debugger
-> Controller P1. Avoids using the windowTitle as that would add a
literal & to the beginning of the window title.

Fix LDN Initialization return code & resulting AM overflow

- Fixes crash on Pokemon Sword/Shield when pressing 'Y'.

vk_resource_pool: Load GPU tick once and compare with it

Other minor style improvements. Rename free_iterator to hint_iterator,
to describe better what it does.