Add XNNPACK and its dependencies to manifest

The following projects are added to manifest:
 - external/cpuinfo
 - external/FP16
 - external/FXdiv
 - external/psimd
 - external/pthreadpool
 - external/XNNPACK

Bug: 148898539
Bug: 148898578
Bug: 148971430
Bug: 148976166
Bug: 149212952
Bug: 149215457
Bug: 148796256
Test: repo sync
1 file changed