arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG

Add a DTS file for the MP2 Cortex-A53 Soft Macrocell Model implemented on a LogicTile Express 20MG (V2F-1XV7) daughterboard. This is based on the version that's currently available from the ARM DTS repository [1].

[1] git://linux-arm.org/arm-dts.git

---

Changes in v3:
- Also removed the /memreserve/, the Boot Monitor adds that too.

Changes in v2:
- Removed enable-method and cpu-release-addr from the second CPU (since the Boot Monitor can add those itself).

 MAINTAINERS                                        |   1 +
 arch/arm64/boot/dts/arm/Makefile                   |   1 +
 .../boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts      | 191 +++++++++++++++++++++
 3 files changed, 193 insertions(+)
 create mode 100644 arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts

index f6b9f82..02ef46d 100644
@@ -1613,6 +1613,7 @@ M:	Lorenzo Pieralisi <[email protected]>
 L:	linux-arm-kernel at lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/boot/dts/vexpress*
+F:	arch/arm64/boot/dts/arm/vexpress*
 F:	arch/arm/mach-vexpress/
 F:	*/*/vexpress*
 F:	*/*/*/vexpress*

index c5c98b9..bb3c072 100644
@@ -1,6 +1,7 @@
 dtb-$(CONFIG_ARCH_VEXPRESS) += foundation-v8.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += juno.dtb juno-r1.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb
+dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb
 
 always		:= $(dtb-y)
 subdir-y	:= $(dts-dirs)

2.1.4

Need to check if it's possible to get this in for v4.2.

Regards,
Sudeep