Wrong variable 'm_ProjectionWeights' is used to check if the pointer is valid from IVGCVSW-4449
Wrong variable 'm_ProjectionWeights' is used to check if the pointer is valid from IVGCVSW-4449

  * Github issue: https://github.com/ARM-software/armnn/issues/639

Signed-off-by: Cathal Corbett <698efcb37030a7415e79e4cf379eb09f757d0834@arm.com>
Change-Id: If93f2cae101814652664c671417946b94a9f749c

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