ipq40xx: add support for GL.iNet GL-AP1300

Specifications:
SOC:        Qualcomm IPQ4018 (DAKOTA) ARM Quad-Core
RAM:        256 MiB
FLASH1:     4 MiB NOR
FLASH2:     128 MiB NAND
ETH:        Qualcomm QCA8075
WLAN1:      Qualcomm Atheros QCA4018 2.4GHz 802.11b/g/n 2x2
WLAN2:      Qualcomm Atheros QCA4018 5GHz 802.11n/ac W2 2x2
INPUT:      Reset
LED:        Power, Internet
UART1:      On board pin header near to LED (3.3V, TX, RX, GND), 3.3V without pin - 115200 8N1
OTHER:      On board with BLE module - by cp210x USB serial chip
            On board hareware watchdog with GPIO0 high to turn on, and GPIO4 for watchdog feed

Install via uboot tftp or uboot web failsafe.

By uboot tftp:
(IPQ40xx) # tftpboot 0x84000000 openwrt-ipq40xx-generic-glinet_gl-ap1300-squashfs-nand-factory.ubi
(IPQ40xx) # run lf

By uboot web failsafe:
Push the reset button for 10 seconds util the power led flash faster,
then use broswer to access http://192.168.1.1

Afterwards upgrade can use sysupgrade image.

Signed-off-by: Dongming Han <handongming@gl-inet.com>

target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch

@@ -10,7 +10,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -837,11 +837,57 @@ dtb-$(CONFIG_ARCH_QCOM) += \
+@@ -837,11 +837,58 @@ dtb-$(CONFIG_ARCH_QCOM) += \
  	qcom-apq8074-dragonboard.dtb \
  	qcom-apq8084-ifc6540.dtb \
  	qcom-apq8084-mtp.dtb \
@@ -28,6 +28,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 +	qcom-ipq4018-ex6100v2.dtb \
 +	qcom-ipq4018-ex6150v2.dtb \
 +	qcom-ipq4018-fritzbox-4040.dtb \
++	qcom-ipq4018-gl-ap1300.dtb \
 +	qcom-ipq4018-jalapeno.dtb \
 +	qcom-ipq4018-meshpoint-one.dtb \
 +	qcom-ipq4018-nbg6617.dtb \