cpupower: Adjust whitespace for amd-pstate specific prints

The amd-pstate section is grouped under boost, which isn't appropriate.

Adjust the indentation so that it is it's own section.

Link: https://lore.kernel.org/r/20241218191144.3440854-8-superm1@kernel.org


Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>