microblaze: Add TRACE_IRQFLAGS_SUPPORT

There are just two major changes
Renamed local_irq functions to raw_local_irq in irq.c.
Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug.

Look at Documentation/irqflags-tracing.txt

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
index 242cd35..9dc708a 100644
--- a/arch/microblaze/Kconfig.debug
+++ b/arch/microblaze/Kconfig.debug
@@ -3,6 +3,9 @@
 
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+	def_bool y
+
 source "lib/Kconfig.debug"
 
 config EARLY_PRINTK