-Parametric ReLU is the generalization of leaky ReLU in which the
leakage coefficient is tunable. The support for the same is added
following the register-level fusion technique.
-Low precision bench enhancement to check accuracy/performance of
low precision gemm with PReLU.
-Bug fixes in low precision gemm kernels.
AMD-Internal: [CPUPL-2442]
Change-Id: I81336405b185a994297d122b2d868b758ae6dad5