Static layout: Add dummy activation_static

Add ActivationStatic inherits Activation, which will be used to do PNOR
code update for statis layout.

Tested: Verify code compiles.

Change-Id: I5d90c84b63797e37fa309caeb9b23035f3c76f9f
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/static/Makefile.am.include b/static/Makefile.am.include
index 827e2fd..126907f 100644
--- a/static/Makefile.am.include
+++ b/static/Makefile.am.include
@@ -1,2 +1,3 @@
 openpower_update_manager_SOURCES += \
-	%reldir%/item_updater_static.cpp
+	%reldir%/item_updater_static.cpp \
+	%reldir%/activation_static.cpp