microblaze: Use generic irq Kconfig

No functional change.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NMichal Simek <monstr@monstr.eu>

arch/microblaze/Kconfig

@@ -15,6 +15,8 @@ config MICROBLAZE
 	select TRACING_SUPPORT
 	select OF
 	select OF_EARLY_FLATTREE
+	select HAVE_GENERIC_HARDIRQS
+	select GENERIC_IRQ_PROBE
 
 config SWAP
 	def_bool n
@@ -37,12 +39,6 @@ config GENERIC_FIND_NEXT_BIT
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_HARDIRQS
-	def_bool y
-
-config GENERIC_IRQ_PROBE
-	def_bool y
-
 config GENERIC_CALIBRATE_DELAY
 	def_bool y