cpu/intel/model_206ax: Lock MSR on all cores

Lock MSR MSR_PKG_CST_CONFIG_CONTROL on all cores, not only the one
handling APM_CNT_FINALIZE.

Tested on HP Z220: FWTS no longer reports this as an issue.

Change-Id: I174d6c6c74fbba47992084cc44ebddf84eeeabd1
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39199
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/cpu/intel/model_206ax/finalize.c

@@ -25,9 +25,6 @@
 
 void intel_model_206ax_finalize_smm(void)
 {
-	/* Lock C-State MSR */
-	msr_set_bit(MSR_PKG_CST_CONFIG_CONTROL, 15);
-
 	/* Lock AES-NI only if supported */
 	if (cpuid_ecx(1) & (1 << 25))
 		msr_set_bit(MSR_FEATURE_CONFIG, 0);

src/cpu/intel/model_206ax/model_206ax_init.c

@@ -256,6 +256,8 @@ static void configure_c_states(void)
 	msr.lo |= (1 << 25);	// C3 Auto Demotion Enable
 	msr.lo &= ~(1 << 10);	// Disable IO MWAIT redirection
 	msr.lo |= 7;		// No package C-state limit
+
+	msr.lo |= (1 << 15);	// Lock C-State MSR
 	wrmsr(MSR_PKG_CST_CONFIG_CONTROL, msr);
 
 	msr = rdmsr(MSR_PMG_IO_CAPTURE_ADDR);