ramoops: Move to fs/pstore/ram.c

Since ramoops was converted to pstore, it has nothing to do with character
devices nowadays. Instead, today it is just a RAM backend for pstore.

The patch just moves things around. There are a few changes were needed
because of the move:

1. Kconfig and Makefiles fixups, of course.

2. In pstore/ram.c we have to play a bit with MODULE_PARAM_PREFIX, this
   is needed to keep user experience the same as with ramoops driver
   (i.e. so that ramoops.foo kernel command line arguments would still
   work).

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/ramoops.h b/include/linux/pstore_ram.h
similarity index 81%
rename from include/linux/ramoops.h
rename to include/linux/pstore_ram.h
index 484fef8..fa4cb02 100644
--- a/include/linux/ramoops.h
+++ b/include/linux/pstore_ram.h
@@ -1,5 +1,5 @@
-#ifndef __RAMOOPS_H
-#define __RAMOOPS_H
+#ifndef __LINUX_PSTORE_RAM_H__
+#define __LINUX_PSTORE_RAM_H__
 
 /*
  * Ramoops platform data