Update ACL pin to 6d9c982a5aec543d1f7f198f0fee10a7a3a78ddb
Update ACL pin to 6d9c982a5aec543d1f7f198f0fee10a7a3a78ddb

Signed-off-by: Nikhil Raj <70dde441576cd8b053dd4c3a595f3f0b9c7a63a3@arm.com>
Change-Id: Id53ba9b780ebe818f139dc04627bd5ba88d9d4ca

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