fixup! gstreamer-encoder: Use a h/w based encoder with Intel GPUs if possible (v3)

Update spice-common submodule

This brings in the following changes:

Vivek Kasireddy (1):
      common: Add a udev helper to identify GPU Vendor (v2)

Signed-off-by: Frediano Ziglio <freddy77@gmail.com>

spice-common @ 512496c5

-Subproject commit 58d375e5eadc6fb9e587e99fd81adcb95d01e8d6
+Subproject commit 512496c55b17fb431d1e6f7474f3896f65403c89