/usr/src/linux-source-3.13.0/debian.master/config/ppc64el/config.flavour.generic is in linux-source-3.13.0 3.13.0-164.214.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | #
# Config options for config.flavour.generic automatically generated by splitconfig.pl
#
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