Merge branch 'pktgen-code-cleanup'

Peter Seiderer says:

====================
net: pktgen: fix checkpatch code style errors/warnings

Fix checkpatch detected code style errors/warnings detected in
the file net/core/pktgen.c (remaining checkpatch checks will be addressed
in a follow up patch set).
====================

Link: https://patch.msgid.link/20250410071749.30505-1-ps.report@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>