treewide: Capitalize 'CMOS'

Change-Id: I1d36e554618498d70f33f6c425b0abc91d4fb952
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38928
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Peter Lemenkov <lemenkov@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/lib/coreboot_table.c

@@ -505,7 +505,7 @@ static uintptr_t write_coreboot_table(uintptr_t rom_table_end)
 			 * lb_record...
 			 */
 			memcpy(rec_dest,  option_table, option_table->size);
-			/* Create cmos checksum entry in coreboot table */
+			/* Create CMOS checksum entry in coreboot table */
 			lb_cmos_checksum(head);
 		} else {
 			printk(BIOS_ERR,