doc: Fix IRQ chip docs

This patch updates the IRQ docs to match reality.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index ae9653d..a287cfc 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -282,7 +282,7 @@
 
 /*
  * Built-in IRQ handlers for various IRQ types,
- * callable via desc->chip->handle_irq()
+ * callable via desc->handle_irq()
  */
 extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);