zink: update textureCompressionBC requirement

The mesa state-tracker can now emulate all formats indicated by this
feature-flag, so we don't require this for OpenGL 4.2 any more.

It's however a good idea to support for power-usage and performance
reasons, saving on memory bandwidth. So let's move it to the
gl46_optimal block instead.

Fixes: e4ff42684b ("mesa/st: enable bptc extension with fallback")
Fixes: 2ea481b2f0 ("Zink: add Zink profiles file")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19779>

docs/drivers/zink.rst

@@ -175,7 +175,6 @@ supported:
   * ``shaderStorageImageWriteWithoutFormat``
   * ``vertexPipelineStoresAndAtomics``
   * ``fragmentStoresAndAtomics``
-  * ``textureCompressionBC``
 
 * For Vulkan 1.2 and above:
 

src/gallium/drivers/zink/VP_ZINK_requirements.json

@@ -169,8 +169,7 @@
                     "shaderStorageImageExtendedFormats": true,
                     "shaderStorageImageWriteWithoutFormat": true,
                     "vertexPipelineStoresAndAtomics": true,
-                    "fragmentStoresAndAtomics": true,
-                    "textureCompressionBC": true
+                    "fragmentStoresAndAtomics": true
                 }
             }
         },
@@ -314,6 +313,9 @@
                 "VK_EXT_non_seamless_cube_map": 1
             },
             "features": {
+                "VkPhysicalDeviceFeatures": {
+                    "textureCompressionBC": true
+                },
                 "VkPhysicalDeviceExtendedDynamicStateFeaturesEXT": {
                     "extendedDynamicState": true
                 },