vk: Fix swapchain format selection

Some platforms don't support R8G8B8_UNORM, making the selection pick the
first format of the driver provided list (which could be sRGB).
Look for either R8G8B8_UNORM or B8G8R8A8_UNORM which should cover more
platforms.

Author: Mefiresu

RSDKv5/RSDK/Graphics/Vulkan/VulkanRenderDevice.cpp

@@ -566,7 +566,8 @@ bool RenderDevice::InitGraphicsAPI()
     VkExtent2D pickedExtent         = currentSwapDetails.capabilities.currentExtent;
 
     for (const auto &availableFormat : currentSwapDetails.formats) {
-        if (availableFormat.format == VK_FORMAT_R8G8B8_UNORM && availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
+        if ((availableFormat.format == VK_FORMAT_R8G8B8_UNORM || availableFormat.format == VK_FORMAT_B8G8R8A8_UNORM)
+            && availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
             pickedFormat = availableFormat;
             break;
         }