src/lib: Capitalize ROM, RAM, NVRAM and CPU

Change-Id: Id0871b0c2eb31e2d728180b44cc5b518b751add4
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15985
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Omar Pakker
Reviewed-by: Martin Roth <martinroth@google.com>

src/lib/cbmem_console.c

@@ -41,7 +41,7 @@ static void copy_console_buffer(struct cbmem_console *old_cons_p,
 #ifdef __PRE_RAM__
 /*
  * While running from ROM, before DRAM is initialized, some area in cache as
- * ram space is used for the console buffer storage. The size and location of
+ * RAM space is used for the console buffer storage. The size and location of
  * the area are defined by the linker script with _(e)preram_cbmem_console.
  */