x86, nops: Missing break resulting in incorrect selection on Intel

commit d6250a3f12 upstream.

The Intel case falls through into the generic case which then changes
the values.  For cases like the P6 it doesn't do the right thing so
this seems to be a screwup.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-lww2uirad4skzjlmrm0vru8o@git.kernel.org
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/x86/kernel/alternative.c

@@ -220,7 +220,7 @@ void __init arch_init_ideal_nops(void)
 			ideal_nops = intel_nops;
 #endif
 		}
-
+		break;
 	default:
 #ifdef CONFIG_X86_64
 		ideal_nops = k8_nops;