vulkan: Warptile tuning for Intel Xe2/Xe3 (llama/18178)

vulkan: Warptile tuning for Intel Xe2/Xe3 (llama/18178)

* modify warptile tuning for xe3

* intel vendor check w/ coopmat support

* fix back formatting

* fix formatting change 2

* move intel check to chip specific tuning part

* Change to support both windows and linux

* modify m_warptile to l_warptile for intel

* modify warptile tuning for bf16 matmuls to fix regression (m_warptile to l_warptile)

* Code style changes

* Code style changes (2)

* Code style changes (3)