ath79: add support for TP-Link TL-WA701ND/730RE/801ND/901ND v1

This adds support for the various clones of the TL-WA830RE recently
supported in fb99ac6807 ("ath79: add support for TP-Link TL-WA830RE v1"):

- tplink,tl-wa701nd-v1
- tplink,tl-wa730re-v1
- tplink,tl-wa801nd-v1
- tplink,tl-wa830re-v1 (already supported)
- tplink,tl-wa901nd-v1

Since these devices are 100%-clones in ar71xx, this patch adds all
of them without run-testing (as this has been done for TL-WA830RE v1).

Specifications:
- SOC: Atheros AR7240
- CPU: 400MHz
- Flash: 4 MiB (Spansion S25FL032P)
- RAM: 32 MiB (Zentel A3S56D40FTP-G5)
- WLAN: Atheros AR9280 bgn 2x2
- Ethernet: 1 port (100M)

Flash instructions:
- install from u-boot with tftp (requires serial access)
  > setenv ipaddr a.b.c.d
  > setenv serverip e.f.g.h
  > tftpboot 0x80000000 \
      openwrt-ath79-tiny-tplink_tl-waxxxxx-v1-squashfs-factory.bin
  > erase 0x9f020000 +0x3c0000
  > cp.b 0x80000000 0x9f020000 0x3c0000
  > bootm 0x9f020000
- flash factory image from OEM WebUI
- sysupgrade from ar71xx image

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ath79/image/tiny-tp-link.mk

@@ -66,6 +66,36 @@ define Device/tplink_tl-mr3420-v2
 endef
 TARGET_DEVICES += tplink_tl-mr3420-v2
 
+define Device/tplink_tl-wa701nd-v1
+  $(Device/tplink-4m)
+  SOC := ar7240
+  DEVICE_MODEL := TL-WA701ND
+  DEVICE_VARIANT := v1
+  TPLINK_HWID := 0x07010001
+  SUPPORTED_DEVICES += tl-wa901nd
+endef
+TARGET_DEVICES += tplink_tl-wa701nd-v1
+
+define Device/tplink_tl-wa730re-v1
+  $(Device/tplink-4m)
+  SOC := ar7240
+  DEVICE_MODEL := TL-WA730RE
+  DEVICE_VARIANT := v1
+  TPLINK_HWID := 0x07300001
+  SUPPORTED_DEVICES += tl-wa901nd
+endef
+TARGET_DEVICES += tplink_tl-wa730re-v1
+
+define Device/tplink_tl-wa801nd-v1
+  $(Device/tplink-4m)
+  SOC := ar7240
+  DEVICE_MODEL := TL-WA801ND
+  DEVICE_VARIANT := v1
+  TPLINK_HWID := 0x08010001
+  SUPPORTED_DEVICES += tl-wa901nd
+endef
+TARGET_DEVICES += tplink_tl-wa801nd-v1
+
 define Device/tplink_tl-wa830re-v1
   $(Device/tplink-4m)
   SOC := ar7240
@@ -100,6 +130,16 @@ define Device/tplink_tl-wa850re-v2
 endef
 TARGET_DEVICES += tplink_tl-wa850re-v2
 
+define Device/tplink_tl-wa901nd-v1
+  $(Device/tplink-4m)
+  SOC := ar7240
+  DEVICE_MODEL := TL-WA901ND
+  DEVICE_VARIANT := v1
+  TPLINK_HWID := 0x09010001
+  SUPPORTED_DEVICES += tl-wa901nd
+endef
+TARGET_DEVICES += tplink_tl-wa901nd-v1
+
 define Device/tplink_tl-wa901nd-v2
   $(Device/tplink-4m)
   SOC := ar9132