kexec_tools: format files

Format *.c according to the new .clang-format. The following command
was used to generate this change:

  $ find . \( -name \*.c -o -name \*.h \) -exec clang-format \
    --style=file -i {} \;

Test: mm
Bug: 171699326
Change-Id: If58e1eea829eb445e2acf2020a220b67285a87f0
2 files changed