cpufreq/amd-pstate: Don't update CPPC request in amd_pstate_cpu_boost_update()

When boost is changed the CPPC value is changed in amd_pstate_cpu_boost_update()
but then changed again when refresh_frequency_limits() and all it's callbacks
occur.  The first is a pointless write, so instead just update the limits for
the policy and let the policy refresh anchor everything properly.

Fixes: c8c68c38 ("cpufreq: amd-pstate: initialize core precision boost state")
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Reviewed-by: Perry Yuan <perry.yuan@amd.com>
Tested-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Link: https://lore.kernel.org/r/20241012174519.897-2-mario.limonciello@amd.com


Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>