siemens: Move CONFIG_FACTORYSET to Kconfig
Introduce board/siemens/common/Kconfig and have it hold FACTORYSET to
start with. Use select for this on the boards that need it.
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Samuel Egli <samuel.egli@siemens.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/siemens/common/Kconfig b/board/siemens/common/Kconfig
new file mode 100644
index 0000000..131439f
--- /dev/null
+++ b/board/siemens/common/Kconfig
@@ -0,0 +1,2 @@
+config FACTORYSET
+ bool