Removing cmake policy CMP0077 as it isn't necessary.
Removing cmake policy CMP0077 as it isn't necessary.

Signed-off-by: Colm Donelan <c908d7595fdc90184dc90d54f2152b78a6b8dbc4@arm.com>
Change-Id: I99e2726ae76acdebaf17704ad5f12bccfc6051fe

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