ARM64: microVU — hand VIXL the full rec reserve (incl. 3MB safe-zone)…

… as buffer capacity, not codeEnd, so a compile near the limit spills safely instead of realloc-aborting

Update iOS 2.2.1 branding and virtual pad

- Bring in current virtual pad layout/editor updates and iPhone toolbar placement fix
- Update ARMSX2 iOS metadata and OSD branding to 2.2.1
- Refresh app icon assets
- Add iOS Metal GameDB hardware-fix improvements

Sync shared GS and audio fixes from macOS

Port the iOS-relevant pieces from the macOS 073f40a..46141ff range:

- GS RT/DS sampling-hazard sample-area calculation fix
- GPU timing stats update when GPU usage overlay is disabled
- SPU2 volume/fast-forward volume safety guards

Skipped desktop-only Qt, FullscreenUI, DirectX, D3D12, Windows camera, and input-navigation changes.

ARM64: Preserve microVU PQ lanes for EFU scalar ops

Port macOS commit 18159b6 to the iOS source layout.

AArch64 scalar FP writes zero the upper vector lanes, unlike x86 SSE scalar ops. Keep the other PQ lanes intact for EFU P-pipe ops to avoid broken geometry such as MGS2 polygons.

ARMSX2 branding

Improve iOS performance and rumble support

Improve iOS fast forward and controller skins

ARM64: microVU — fix FTOI NaN-pattern inputs (saturate by sign, not 0…

…) and SQRT clamp NaN propagation (Fminnm)

ARM64: Fold const-known EE ALU ops into the GPR cache as immediate Movs

Merge pull request #120 from zeruth/refresh

ARMSX2 refresh