V4L/DVB (13613): IR: create ir-core module

Split the ir-common into two separate modules:
	- ir-core: it is the IR-independent functions;
	- ir-common: has the common part used by V4L drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/IR/Kconfig b/drivers/media/IR/Kconfig
index 5b4ac96..4dde7d1 100644
--- a/drivers/media/IR/Kconfig
+++ b/drivers/media/IR/Kconfig
@@ -1,4 +1,9 @@
-config VIDEO_IR
+config IR_CORE
 	tristate
 	depends on INPUT
 	default INPUT
+
+config VIDEO_IR
+	tristate
+	depends on IR_CORE
+	default IR_CORE