ARM: dts: bcm283x: Fix pin function of JTAG pins

ARM: dts: bcm283x: Fix pin function of JTAG pins

BugLink: http://bugs.launchpad.net/bugs/1786352
[ Upstream commit 1a012cb2569f2031b3636232c3ab21c20c92d281 ]

BCM2835 ARM Peripherals doc shows gpio pins 4, 5, 6, 12 and 13
carry altenate function, ALT5 for ARM JTAG

Fixes: 21ff843931b2 ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Signed-off-by: Henry Zhang <henryzhang62@gmail.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>