Remove volatile qualifier in get_ram_size() calls

Checkpatch.pl complains about the volatile qualifier in calls to
get_ram_size(). Remove this qualifier in the prototype and in the
calls where it is useless, and leave it only in the function body
where it is needed.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

common/memsize.c

@@ -37,7 +37,7 @@
  * the actually available RAM size between addresses `base' and
  * `base + maxsize'.
  */
-long get_ram_size(volatile long *base, long maxsize)
+long get_ram_size(long *base, long maxsize)
 {
 	volatile long *addr;
 	long           save[32];