{cpu,soc}/intel: replace AES-NI locking by common implemenation call

Deduplicate code by using the new common cpu code implementation of
AES-NI locking.

Change-Id: I7ab2d3839ecb758335ef8cc6a0c0c7103db0fa50
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46278
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/cpu/intel/model_206ax/model_206ax_init.c

@@ -470,11 +470,7 @@ static void model_206ax_init(struct device *cpu)
 	/* Thermal throttle activation offset */
 	configure_thermal_target();
 
-	if (!intel_ht_sibling()) {
-		/* Lock AES-NI only if supported */
-		if (cpuid_ecx(1) & (1 << 25))
-			msr_set(MSR_FEATURE_CONFIG, BIT(0));
-	}
+	set_aesni_lock();
 
 	/* Enable Direct Cache Access */
 	configure_dca_cap();