x86/Kconfig: Simplify X86_UP_APIC handling

We don't really need a helper symbol for that. For one, it's
pointlessly getting set to Y for all configurations (even 64-bit
ones). And then the purpose can be fulfilled by suitably
adjusting X86_UP_APIC: Hide its prompt when PCI_MSI, and default
it to PCI_MSI.

Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/54D39AFC020000780005D684@mail.emea.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/Kconfig

@@ -859,7 +859,8 @@ config UP_LATE_INIT
        depends on !SMP && X86_LOCAL_APIC
 
 config X86_UP_APIC
-	bool "Local APIC support on uniprocessors"
+	bool "Local APIC support on uniprocessors" if !PCI_MSI
+	default PCI_MSI
 	depends on X86_32 && !SMP && !X86_32_NON_STANDARD
 	---help---
 	  A local APIC (Advanced Programmable Interrupt Controller) is an
@@ -871,10 +872,6 @@ config X86_UP_APIC
 	  performance counters), and the NMI watchdog which detects hard
 	  lockups.
 
-config X86_UP_APIC_MSI
-	def_bool y
-	select X86_UP_APIC if X86_32 && !SMP && !X86_32_NON_STANDARD && PCI_MSI
-
 config X86_UP_IOAPIC
 	bool "IO-APIC support on uniprocessors"
 	depends on X86_UP_APIC