Merge pull request #1246 from sandrine-bailleux-arm/topics/sb/fix-cnp-doc

Fix documentation for CnP bit
diff --git a/docs/firmware-design.rst b/docs/firmware-design.rst
index 1f8fcc8..c383c5d 100644
--- a/docs/firmware-design.rst
+++ b/docs/firmware-design.rst
@@ -2574,9 +2574,9 @@
 ``ARM_ARCH_MINOR`` >= 2.
 
 -  The Common not Private (CnP) bit is enabled to indicate that multiple
-   Page Entries in the same Inner Shareable domain use the same translation
-   table entries for a given stage of translation for a particular translation
-   regime.
+   Processing Elements in the same Inner Shareable domain use the same
+   translation table entries for a given stage of translation for a particular
+   translation regime.
 
 ARMv7
 ~~~~~