ipq806x: rename R7800 device tree file, merge R7500v2 dts addition

The R7800 is an IPQ8065, so rename its dts file to reflect that fact.
Also fold the R7500v2 dts addition into the existing 800-devicetree.patch.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

target/linux/ipq806x/image/Makefile

@@ -190,7 +190,7 @@ endef
 
 define Device/R7800
 	$(call Device/DniImage)
-	DEVICE_DTS := qcom-ipq8064-r7800
+	DEVICE_DTS := qcom-ipq8065-r7800
 	KERNEL_SIZE := 2097152
 	NETGEAR_BOARD_ID := R7800
 	NETGEAR_HW_ID := 29764958+0+128+512+4x4+4x4+cascade

target/linux/ipq806x/patches-4.4/800-devicetree.patch

@@ -12,7 +12,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -506,7 +506,12 @@ dtb-$(CONFIG_ARCH_QCOM) += \
+@@ -506,7 +506,13 @@ dtb-$(CONFIG_ARCH_QCOM) += \
  	qcom-apq8084-ifc6540.dtb \
  	qcom-apq8084-mtp.dtb \
  	qcom-ipq8064-ap148.dtb \
@@ -21,7 +21,8 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  	qcom-ipq8064-db149.dtb \
 +	qcom-ipq8064-ea8500.dtb \
 +	qcom-ipq8064-r7500.dtb \
-+	qcom-ipq8064-r7800.dtb \
++	qcom-ipq8064-r7500v2.dtb \
++	qcom-ipq8065-r7800.dtb \
  	qcom-msm8660-surf.dtb \
  	qcom-msm8960-cdp.dtb \
  	qcom-msm8974-sony-xperia-honami.dtb

target/linux/ipq806x/patches-4.4/801-ARM-dts-qcom-add-Netgear-X4-R7500v2-dts-to-Makefile.patch

@@ -1,10 +0,0 @@
---- a/arch/arm/boot/dts/Makefile
-+++ b/arch/arm/boot/dts/Makefile
-@@ -511,6 +511,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
- 	qcom-ipq8064-db149.dtb \
- 	qcom-ipq8064-ea8500.dtb \
- 	qcom-ipq8064-r7500.dtb \
-+	qcom-ipq8064-r7500v2.dtb \
- 	qcom-ipq8064-r7800.dtb \
- 	qcom-msm8660-surf.dtb \
- 	qcom-msm8960-cdp.dtb \