src/arch: Capitalize CPU, RAM and ROM

Change-Id: Ia6ac94a93b48037a392a9aec2cd19cd80369173f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15953
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/arch/x86/walkcbfs.S b/src/arch/x86/walkcbfs.S
index c5408b1..bd71f19 100644
--- a/src/arch/x86/walkcbfs.S
+++ b/src/arch/x86/walkcbfs.S
@@ -47,7 +47,7 @@
 	mov CBFS_HEADER_ROMSIZE(%eax), %ecx
 	bswap %ecx
 	mov $0, %ebx
-	sub %ecx, %ebx	/* rom base address in ebx */
+	sub %ecx, %ebx	/* ROM base address in ebx */
 	mov CBFS_HEADER_OFFSET(%eax), %ecx
 	bswap %ecx
 	add %ecx, %ebx	/* address where we start looking for LARCHIVEs */