security/intel/txt/getsec.c: Do not check lock bit

This allows calling GETSEC[CAPABILITIES] during early init, when the MSR
isn't locked yet.

Change-Id: I2253b5f2c8401c9aed8e32671eef1727363d00cc
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44883
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/security/intel/txt/getsec.c

@@ -27,7 +27,7 @@ static bool getsec_enabled(void)
 	 * Check if SMX, VMX and GetSec instructions haven't been disabled.
 	 */
 	msr_t msr = rdmsr(IA32_FEATURE_CONTROL);
-	if ((msr.lo & 0xff07) != 0xff07)
+	if ((msr.lo & 0xff06) != 0xff06)
 		return false;
 
 	/*