dma-mapping: add DMA_xxBIT_MASK to feature-removal-schedule.txt

DMA_xxBIT_MASK macros were marked as deprecated in June 2009.  One more
year is long enough, I think.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 1ebf5fd..842aa9d 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -556,3 +556,11 @@
 Who:	FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
 
 ----------------------------
+
+What: 	DMA_xxBIT_MASK macros
+When:	Jun 2011
+Why:	DMA_xxBIT_MASK macros were replaced with DMA_BIT_MASK() macros.
+Who:	FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
+
+----------------------------
+