Fix typos concerning hierarchy

        heirarchical, hierachical -> hierarchical
        heirarchy, hierachy -> hierarchy

Signed-off-by: Uwe Kleine-König <zeisberg@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/sh/new-machine.txt b/Documentation/sh/new-machine.txt
index 73988e0..5482bf5 100644
--- a/Documentation/sh/new-machine.txt
+++ b/Documentation/sh/new-machine.txt
@@ -17,7 +17,7 @@
 in arch/sh/kernel/ directly, with board-specific headers ending up in
 include/asm-sh/. For the new kernel, things are broken out by board type,
 companion chip type, and CPU type. Looking at a tree view of this directory
-heirarchy looks like the following:
+hierarchy looks like the following:
 
 Board-specific code:
 
@@ -108,7 +108,7 @@
 member itself.
 
 There are a few things that each board is required to have, both in the
-arch/sh/boards and the include/asm-sh/ heirarchy. In order to better
+arch/sh/boards and the include/asm-sh/ hierarchy. In order to better
 explain this, we use some examples for adding an imaginary board. For
 setup code, we're required at the very least to provide definitions for
 get_system_type() and platform_setup(). For our imaginary board, this