x86, apic: clean up target_cpus methods

Impact: cleanup

Clean up all the target_cpus() namespace overlap that exists
between bigsmp, es7000, mach-default, numaq and summit - by
separating the different functions into different names.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
index fe97b01..a483e22 100644
--- a/arch/x86/mach-generic/default.c
+++ b/arch/x86/mach-generic/default.c
@@ -35,7 +35,7 @@
 	/* logical delivery broadcast to all CPUs: */
 	.irq_dest_mode			= 1,
 
-	.target_cpus			= target_cpus,
+	.target_cpus			= default_target_cpus,
 	.ESR_DISABLE			= esr_disable,
 	.apic_destination_logical	= APIC_DEST_LOGICAL,
 	.check_apicid_used		= check_apicid_used,