IVGCVSW-5348 Update Doxygen Docu
IVGCVSW-5348 Update Doxygen Docu

* update release version in Doxyfile

Signed-off-by: James Ward <b718fbf7061bc880ff31741a5fd376dfbf71ddce@arm.com>
Change-Id: Iaaf06059eeba69b66b5ab211692a84c83ace9bb3

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