x86/cpufeatures: Mark two free bits in word 3

commit fbd5969d upstream.

... so that they get reused when needed.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200604104150.2056-1-bp@alien8.de


Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>