x86: Use generic show_interrupts

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 867a8cf..ad74608 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -66,6 +66,7 @@
 	select HAVE_SPARSE_IRQ
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
+	select GENERIC_IRQ_SHOW
 	select USE_GENERIC_SMP_HELPERS if SMP
 
 config INSTRUCTION_DECODER