/usr/src/linux-source-4.4.0/debian.master/d-i/exclude-modules.ppc64el-generic is in linux-source-4.4.0 4.4.0-89.112.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | serial-modules
pata-modules
fat-modules
pcmcia-storage-modules
nic-pcmcia-modules
pcmcia-modules
firewire-core-modules
usb-modules
mouse-modules
irda-modules
speakup-modules
|