Remove incorrect use of std::vector.reserve
Remove incorrect use of std::vector.reserve

Change-Id: Ic45d4c837eaad8b9f19288d4f3b6e8caa3eaf319
Signed-off-by: Jim Flynn <af5ec5733a77f43f3ed5c8afc85bbe49b9031cfd@arm.com>

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