src/southbridge: Capitalize CPU, RAM and ROM

Change-Id: I01413b9f8b77ecdcb781340f04c2fe9e24810264
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15941
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>

src/southbridge/amd/cs5536/cs5536.c

@@ -560,7 +560,7 @@ void chipsetinit(void)
 	outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
 
 	/*      Allow IO read and writes during a ATA DMA operation. */
-	/*       This could be done in the HD rom but do it here for easier debugging. */
+	/*       This could be done in the HD ROM but do it here for easier debugging. */
 	msrnum = ATA_SB_GLD_MSR_ERR;
 	msr = rdmsr(msrnum);
 	msr.lo &= ~0x100;