IVGCVSW-2141 BuildGuideCrossCompilation.md Documentation update * Removed the usage of g++-5 as we can build it using later versions
IVGCVSW-2141 BuildGuideCrossCompilation.md Documentation update
* Removed the usage of g++-5 as we can build it using later versions

Change-Id: I073c84868c8619aeb5e4bd3006b87d10b7fec37e

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