include: arch: arm: Remove aarch32 directory

This commit follows the parent commit work.

This commit introduces the following major changes.

  1. Move all directories and files in 'include/zephyr/arch/arm/aarch32'
    to the 'include/zephyr/arch/arm' directory.

  2. Change the path string which is influenced by the changement 1.

Signed-off-by: Huifeng Zhang <Huifeng.Zhang@arm.com>
199 files changed