IVGCVSW-3889 Add ACL source files required for ClInstanceNormalizationWorkload
IVGCVSW-3889 Add ACL source files required for ClInstanceNormalizationWorkload

* Add CLInstanceNormalizationLayer.cpp and CLInstanceNormalizationLayerKernel.cpp
  to Android.bp

Signed-off-by: Aron Virginas-Tar <3a0dcb9f237ba4421ab064af2ee32b804b28219b@arm.com>
Change-Id: I1f86c961c52cda95c6d92aa6108b3eb6bb942f30

ARM-software/android-nn-driver,ARM-software/android-nn-driver