llama.cpp b9813 release adds Intel Xe-LPG Plus Vulkan support

The llama.cpp b9813 release introduces Vulkan support for Intel Xe-LPG Plus hardware by adding the INTEL_XE1 architecture enum and enabling coopmat1. This update addresses previous code comments, renames the architecture identifier, and includes a Windows driver check.

• Added INTEL_XE1 arch enum and enabled coopmat1 on Intel Xe-LPG Plus (Xe1-ARLH).
• Renamed INTEL_PRE_XE2 to INTEL_XE1 and removed a specific driver workaround.
• Added a check for Windows drivers to ensure compatibility.

This release expands hardware compatibility for llama.cpp users with Intel integrated graphics, allowing them to utilize cooperative matrix operations via Vulkan.