OpenGLHostDisplay: Disable PBOs for streaming on Broadcom GPUs

glTexImage2D takes an extra 2-3ms when using PBOs for some reason,
despite the extra copy application-side...

src/frontend-common/opengl_host_display.cpp

@@ -402,7 +402,7 @@ bool OpenGLHostDisplay::InitializeRenderDevice(std::string_view shader_cache_dir
   {
     // Adreno seems to corrupt textures through PBOs...
     const char* gl_vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
-    if (std::strstr(gl_vendor, "Qualcomm"))
+    if (std::strstr(gl_vendor, "Qualcomm") || std::strstr(gl_vendor, "Broadcom"))
       m_use_pbo_for_pixels = false;
   }