IVGCVSW-5547 Fix Delegate Softmax failures on CpuAcc/GpuAcc
IVGCVSW-5547 Fix Delegate Softmax failures on CpuAcc/GpuAcc

 * Changed percentage tolerance to 0.1%

Signed-off-by: Jan Eilers <f1effb43f7b7dacf8209aaa37935f1cffdf56e41@arm.com>
Change-Id: I3e2294941a29a5f973e3023cb70735562bad4521

ARM-software/armnn,ARM-software/armnn,ARM-software/armnn