Reduce difference between files in math_brute_force (#1138)

* Reduce differences between files

This will help reduce code duplication is future commits.

Some code is moved around, some variables are renamed and some
statements are slightly altered to reduce differences between files in
math_brute_force, yet the semantics remains the same.

The differences were identified using n-way diffs. Many differences
remain however.

Signed-off-by: Marco Antognini <marco.antognini@arm.com>

* Workaround clang-format limitation

Introduces some insignificant spaces to force clang-format to reduce the
indentation and reduce differences between files.

Signed-off-by: Marco Antognini <marco.antognini@arm.com>
13 files changed