cpu: x86 -- Fix --cpu-cap=fpu handling on restore mode

Our CPU_CAP_s are bitmaps so if cpuinfo image is present
but we require only FPU to check we need to check this
bit being sole on comman line.

It was a typo in first place which caused statement to
be false always (it's not a problem though and not a
@stable candidate because with this mistake we fall
into strict match cpu mode).
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

arch/x86/cpu.c

@@ -276,7 +276,7 @@ static int cpu_validate_features(CpuinfoX86Entry *img_x86_entry)
 		return -1;
 	}
 
-	if ((opts.cpu_cap & ~CPU_CAP_FPU) == CPU_CAP_FPU) {
+	if (opts.cpu_cap == CPU_CAP_FPU) {
 		/*
 		 * If we're requested to check FPU only ignore
 		 * any other bit. It's up to a user if the