hwclock.sh: improve hwclock.sh script to use UTC variable

Make UTC variable in /etc/default/rcS has effect on hwclock.sh.
This variable declares whether the Hardware Clock is kept in UTC
or local time. Default its value to "yes" and change the comment.

[YOCTO #3341]

(From OE-Core rev: 2bda4bbda3f3033cfb324778ef88f2aedad4a83b)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/busybox/busybox_1.20.2.bb

@@ -1,5 +1,5 @@
 require busybox.inc
-PR = "r3"
+PR = "r4"
 
 SRC_URI = "http://www.busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \
            file://B921600.patch \

meta/recipes-core/busybox/files/hwclock.sh

@@ -22,6 +22,7 @@
 
 . /etc/default/rcS
 
+[ "$UTC" = "yes" ] && tz="--utc" || tz="--localtime"
 case "$1" in
         start)
                 if [ "$VERBOSE" != no ]
@@ -34,9 +35,9 @@ case "$1" in
 		then
 			if [ -z "$TZ" ]
 			then
-	                   hwclock --hctosys
+	                   hwclock $tz --hctosys
 			else
-			   TZ="$TZ" hwclock --hctosys
+			   TZ="$TZ" hwclock $tz --hctosys
 			fi
 		fi
 
@@ -59,7 +60,7 @@ case "$1" in
 		fi
 		if [ "$HWCLOCKACCESS" != no ]
 		then
-			hwclock --systohc
+			hwclock $tz --systohc
 		fi
 		if [ "$VERBOSE" != no ]
 		then
@@ -70,7 +71,7 @@ case "$1" in
 	show)
 		if [ "$HWCLOCKACCESS" != no ]
 		then
-			hwclock --show
+			hwclock $tz --show
 		fi
 		;;
         *)

meta/recipes-core/sysvinit/sysvinit/rcS-default

@@ -9,8 +9,8 @@ SULOGIN=no
 # Set to no if you want to be able to login over telnet/rlogin
 # before system startup is complete (as soon as inetd is started)
 DELAYLOGIN=no
-# Set UTC=yes if your system clock is set to UTC (GMT), and UTC=no if not.
-# UTC=yes
+# Assume that the BIOS clock is set to UTC time (recommended)
+UTC=yes
 # Set VERBOSE to "no" if you would like a more quiet bootup.
 VERBOSE=no
 # Set EDITMOTD to "no" if you don't want /etc/motd to be edited automatically

meta/recipes-core/sysvinit/sysvinit_2.88dsf.bb

@@ -5,7 +5,7 @@ SECTION = "base"
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe \
                     file://COPYRIGHT;endline=15;md5=349c872e0066155e1818b786938876a4"
-PR = "r7"
+PR = "r8"
 
 RDEPENDS_${PN} = "${PN}-inittab"