ARM: vexpress: extend the MPIDR range used for pen release check

In ARM multi-cluster systems the MPIDR affinity level 0 cannot be used as a
single cpu identifier, affinity levels 1 and 2 must be taken into account as
well.
This patch extends the MPIDR usage to affinity levels 1 and 2 in versatile
secondary cores start up code in order to compare the passed pen_release
value with the full-blown affinity mask.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>

arch/arm/plat-versatile/headsmp.S

@@ -20,7 +20,7 @@
  */
 ENTRY(versatile_secondary_startup)
 	mrc	p15, 0, r0, c0, c0, 5
-	and	r0, r0, #15
+	bic	r0, #0xff000000
 	adr	r4, 1f
 	ldmia	r4, {r5, r6}
 	sub	r4, r4, r5