[PATCH CFT] ARM:REALVIEW: Enable AUTO_ZRELADDR by default

[panchaxari]

This patch enables AUTO_ZRELADDR as default config to Realview platform.

AUTO_ZRELADDR config enables auto calculation of the decompressed kernel image
address. AUTO_ZRELADDR config is mutually exclusive to ZBOOT_ROM, and also
assumes zImage to be loaded in the first 128MiB from start of memory.

CFT::Call For Testing

Requesting maintainers of Realview platforms to evaluate the changes on the
board and comment, as I dont have the board for testing, and also requesting
an ACK.

Signed-off-by: panchaxari <panchaxari.prasannamurthy at linaro.org>
Cc: Will Deacon <will.deacon at arm.com>
Cc: Pawel Moll <Pawel.Moll at arm.com>
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Rob Herring <rob.herring at calxeda.com>
Cc: Viresh Kumar <viresh.linux at gmail.com>
Cc: Shawn Guo <shawn.guo at linaro.org>
Cc: Olof Johansson <olof at lixom.net>
Cc: Linus Walleij <linus.walleij at linaro.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org

---
Below lkml link is a quoting by Russell, which explains more on concept of
PHYS_VIRT and ZRELADDR
-------------------------------------------------

https://lkml.org/lkml/2011/10/14/434

-------------------------------------------------
---
 arch/arm/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3dfc3b8..077ef9d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -332,6 +332,7 @@ config ARCH_REALVIEW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
 	select ARM_TIMER_SP804
+	select AUTO_ZRELADDR
 	select COMMON_CLK
 	select COMMON_CLK_VERSATILE
 	select GENERIC_CLOCKEVENTS
-- 
1.7.10.4