[source] ipq806x: fix Netgear R7500v2 memory

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/3ac5eb914169a7169f5522799fbb0f90f1234c1c

commit 3ac5eb914169a7169f5522799fbb0f90f1234c1c
Author: Pavel Kubelun <be.dissent at gmail.com>
AuthorDate: Wed Nov 9 12:43:04 2016 +0300

    ipq806x: fix Netgear R7500v2 memory
    
    Netgear R7500v2 has 512MB of RAM with 2MB reserved block in the end of memory region.
    
    Signed-off-by: Pavel Kubelun <be.dissent at gmail.com>
---
 .../linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts
index 079f5e8..869712d 100644
--- a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts
+++ b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts
@@ -7,7 +7,7 @@
 	compatible = "netgear,r7500v2", "qcom,ipq8064";
 
 	memory at 0 {
-		reg = <0x42000000 0xe000000>;
+		reg = <0x42000000 0x1e000000>;
 		device_type = "memory";
 	};
 
@@ -19,6 +19,11 @@
 			reg = <0x41200000 0x300000>;
 			no-map;
 		};
+
+		rsvd at 5fe00000 {
+			reg = <0x5fe00000 0x200000>;
+			reusable;
+		};
 	};
 
 	aliases {