Clamp m_shaderStage to shaderStageCompute
Clamp m_shaderStage to shaderStageCompute

The builder m_shaderStage state would be clamped to the shaderStageCompute

googlestadia/llpc,googlestadia/llpc,googlestadia/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc,googlestadia/llpc,googlestadia/llpc,GPUOpen-Drivers/llpc,GPUOpen-Drivers/llpc