The Vulkan renderer doesn't actually support RGB texture formats

Fixes https://github.com/libsdl-org/SDL/issues/10400

src/render/vulkan/SDL_render_vulkan.c

@@ -399,7 +399,7 @@ static SDL_PixelFormat VULKAN_VkFormatToSDLPixelFormat(VkFormat vkFormat)
     case VK_FORMAT_B8G8R8A8_UNORM:
         return SDL_PIXELFORMAT_ARGB8888;
     case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
-        return SDL_PIXELFORMAT_XBGR2101010;
+        return SDL_PIXELFORMAT_ABGR2101010;
     case VK_FORMAT_R16G16B16A16_SFLOAT:
         return SDL_PIXELFORMAT_RGBA64_FLOAT;
     default:
@@ -445,10 +445,9 @@ static VkFormat SDLPixelFormatToVkTextureFormat(Uint32 format, Uint32 output_col
     switch (format) {
     case SDL_PIXELFORMAT_RGBA64_FLOAT:
         return VK_FORMAT_R16G16B16A16_SFLOAT;
-    case SDL_PIXELFORMAT_XBGR2101010:
+    case SDL_PIXELFORMAT_ABGR2101010:
         return VK_FORMAT_A2B10G10R10_UNORM_PACK32;
     case SDL_PIXELFORMAT_ARGB8888:
-    case SDL_PIXELFORMAT_XRGB8888:
         if (output_colorspace == SDL_COLORSPACE_SRGB_LINEAR) {
             return VK_FORMAT_B8G8R8A8_SRGB;
         }
@@ -4304,8 +4303,7 @@ static bool VULKAN_CreateRenderer(SDL_Renderer *renderer, SDL_Window *window, SD
 
     renderer->name = VULKAN_RenderDriver.name;
     SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_ARGB8888);
-    SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_XRGB8888);
-    SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_XBGR2101010);
+    SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_ABGR2101010);
     SDL_AddSupportedTextureFormat(renderer, SDL_PIXELFORMAT_RGBA64_FLOAT);
     SDL_SetNumberProperty(SDL_GetRendererProperties(renderer), SDL_PROP_RENDERER_MAX_TEXTURE_SIZE_NUMBER, 16384);