[WebGPU] WGPUTextureFormat_BC2RGBAUnorm and WGPUTextureFormat_BC2RGBA…

…UnormSrgb have the wrong block size in Texture::blockSize

https://bugs.webkit.org/show_bug.cgi?id=263672
<radar://117483503>

Reviewed by Tadeu Zagallo.

WGPUTextureFormat_BC2RGBAUnorm* block size was wrong along with
WGPUTextureFormat_BC2RGBAUnorm* as well.

* Source/WebGPU/WebGPU/Texture.mm:
(WebGPU::Texture::texelBlockSize):

Canonical link: https://commits.webkit.org/269775@main

Source/WebGPU/WebGPU/Texture.mm

@@ -1638,7 +1638,7 @@ static bool textureViewFormatCompatible(WGPUTextureFormat format1, WGPUTextureFo
         return 8;
     case WGPUTextureFormat_BC2RGBAUnorm:
     case WGPUTextureFormat_BC2RGBAUnormSrgb:
-        return 8;
+        return 16;
     case WGPUTextureFormat_BC3RGBAUnorm:
     case WGPUTextureFormat_BC3RGBAUnormSrgb:
         return 16;
@@ -1658,12 +1658,12 @@ static bool textureViewFormatCompatible(WGPUTextureFormat format1, WGPUTextureFo
     case WGPUTextureFormat_ETC2RGB8UnormSrgb:
     case WGPUTextureFormat_ETC2RGB8A1Unorm:
     case WGPUTextureFormat_ETC2RGB8A1UnormSrgb:
-    case WGPUTextureFormat_ETC2RGBA8Unorm:
-    case WGPUTextureFormat_ETC2RGBA8UnormSrgb:
         return 8;
     case WGPUTextureFormat_EACR11Unorm:
     case WGPUTextureFormat_EACR11Snorm:
         return 8;
+    case WGPUTextureFormat_ETC2RGBA8Unorm:
+    case WGPUTextureFormat_ETC2RGBA8UnormSrgb:
     case WGPUTextureFormat_EACRG11Unorm:
     case WGPUTextureFormat_EACRG11Snorm:
         return 16;