Add and update information at 'Documentation/process/changes.rst'. The
text has outdated kernel version and misses the 'cpio' build
requirement, necessary for the `kernel/gen_kheaders.sh` script called by
the install target.

The PATCH 1/2 fixes the missing cpio requirement, while PATCH 2/2 fixes
the kernel version.

Signed-off-by: Bruno Moreira-Guedes <codeagain@codeagain.dev>
---
Bruno Moreira-Guedes (2):
  Docs: Add cpio requirement to changes.rst
  Docs: Update kernel series in changes.rst

 Documentation/process/changes.rst | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

-- 
2.35.3