COMPMID-1979: Fuse Activation Function in CLGEMM - part 1

Implementing a new struct to contains the information for the
OpenCL GEMM kernels

Change-Id: I6c641c312f9c3b025a7c69dd0df3b730d2d2c2cb
Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1434
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Giuseppe Rossini <giuseppe.rossini@arm.com>
diff --git a/arm_compute/core/KernelDescriptors.h b/arm_compute/core/KernelDescriptors.h
index 83131f4..fe59365 100644
--- a/arm_compute/core/KernelDescriptors.h
+++ b/arm_compute/core/KernelDescriptors.h
@@ -48,5 +48,16 @@
     unsigned int Nx{ 0 };                 /**< Nx coefficient. */
     bool         is_first_stage{ false }; /**< Flags if the FFT kernels is the first stage of a decomposed FFT. */
 };
+
+/** Descriptor used by the GEMM kernels */
+struct GEMMKernelInfo
+{
+    unsigned int m{ 0 };
+    unsigned int n{ 0 };
+    unsigned int k{ 0 };
+    unsigned int depth_output_gemm3d{ 0 };
+    bool         reinterpret_input_as_3d{ false };
+    bool         broadcast_bias{ false };
+};
 } // namespace arm_compute
 #endif /* __ARM_COMPUTE_CORE_KERNEL_DESCRIPTORS_H__ */