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/drivers/pc80/rtc/mc146818rtc.c

@@ -160,7 +160,7 @@ static void cmos_init_vbnv(bool invalid)
 	   occurred with !CONFIG_USE_OPTION_TABLE. However, __cmos_init() may
 	   clear vbnv data for other internal reasons. For that, always back up
 	   the vbnv contents and conditionally save them when __cmos_init()
-	   indicates cmos was cleared. */
+	   indicates CMOS was cleared. */
 	read_vbnv_cmos(vbnv);
 
 	if (__cmos_init(invalid))
@@ -204,7 +204,7 @@ void cmos_check_update_date(void)
 	year = cmos_read(RTC_CLK_YEAR);
 
 	/*
-	 * TODO: If century is 0xFF, 100% that the cmos is cleared.
+	 * TODO: If century is 0xFF, 100% that the CMOS is cleared.
 	 * Other than that, so far rtc_year is the only entry to check
 	 * if the date is valid.
 	 */

src/drivers/pc80/rtc/option.c

@@ -26,7 +26,7 @@
 
 /*
  * This routine returns the value of the requested bits.
- * input bit = bit count from the beginning of the cmos image
+ * input bit = bit count from the beginning of the CMOS image
  * length = number of bits to include in the value
  * ret = a character pointer to where the value is to be returned
  * returns CB_SUCCESS = successful, cb_err code if an error occurred