Find default build location for Compute Library binaries.
In common cases this reduces the cmake arguments needed
for Compute Library from:
"cmake -DARMCOMPUTENEON=1 -DARMCOMPUTECL=1 -DARMCOMPUTE_ROOT=../ComputeLibrary -DARMCOMPUTE_BUILD_DIR=ARMCOMPUTE_BUILD_DIR=../ComputeLibrary/build -DSHARED_BOOST=1 ../armnn/"
to:
"cmake -DARMCOMPUTENEON=1 -DARMCOMPUTECL=1 -DARMCOMPUTE_ROOT=../ComputeLibrary -DSHARED_BOOST=1 ../armnn/"
Signed-off-by: Matthew Bentham <matthew.bentham@arm.com>
Change-Id: I992f4ef428f10dc92ca9457fe8981ae3af93f538