Restored compatibility fixes for some Androids

UnitySDK/Assets/ML-Agents/Plugins/Barracuda.Core/Barracuda/Resources/Conv.compute

 #pragma kernel Conv2D
 #pragma kernel Conv2D_RegisterBlock4x2
-#pragma kernel Conv2D_L1Cached64_RegisterBlock4x4
-#pragma kernel Conv2D_L1Cached32_RegisterBlock4x4
+//#pragma kernel Conv2D_L1Cached64_RegisterBlock4x4
+//#pragma kernel Conv2D_L1Cached32_RegisterBlock4x4
 
 #pragma kernel DepthwiseConv2D
 

UnitySDK/Assets/ML-Agents/Plugins/Barracuda.Core/Barracuda/Resources/Dense.compute

 #pragma kernel Dense_L1Cached64
 #pragma kernel DenseTiled16x16
-#pragma kernel DenseTiled32x32
-#pragma kernel DenseTiled64x64
+//#pragma kernel DenseTiled32x32
+//#pragma kernel DenseTiled64x64
 
 #include "Tensor.cginc"