OpenCL tuning fails on Pixel7a MaliG710 GPU

[jopdorp]

I was able to compile for android with opencl support using my branch: https://github.com/jopdorp/KataGo/tree/android-support

Hopefully this will make it easier to use katago on android for future devs. Now in the runtime when I try to use it, I get a crash during the tuning process:

No existing tuning parameters found or parseable or valid at: /data/user/0/nl.jopdorp.opengoban/files/.katago/opencltuning/tune11_gpuMaliG710r0p0_x19_y19_c128_mv8.txt Performing autotuning

......

Tuning hGemmWmma for convolutions error: couldn't allocate output register for constraint 'r'