[source] ar71xx: fix more image build code whitespace/tab issues

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/?p=source.git;a=commitdiff;h=ad323881df77d789c6c671e1ec55bc18575feb54

commit ad323881df77d789c6c671e1ec55bc18575feb54
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Jul 21 13:49:01 2016 +0200

    ar71xx: fix more image build code whitespace/tab issues
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/ar71xx/image/nand.mk | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/target/linux/ar71xx/image/nand.mk b/target/linux/ar71xx/image/nand.mk
index b467958..db28c90 100644
--- a/target/linux/ar71xx/image/nand.mk
+++ b/target/linux/ar71xx/image/nand.mk
@@ -21,19 +21,19 @@ endef
 TARGET_DEVICES += mr18
 
 define LegacyDevice/R6100
-	DEVICE_TITLE := NETGEAR R6100
-	DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-ledtrig-usbdev
+  DEVICE_TITLE := NETGEAR R6100
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-ledtrig-usbdev
 endef
 LEGACY_DEVICES += R6100
 
 define LegacyDevice/WNDR4300
-	DEVICE_TITLE := NETGEAR WNDR3700v4/WNDR4300
-	DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-ledtrig-usbdev
+  DEVICE_TITLE := NETGEAR WNDR3700v4/WNDR4300
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-ledtrig-usbdev
 endef
 LEGACY_DEVICES += WNDR4300
 
 define LegacyDevice/NBG6716
-	DEVICE_TITLE := Zyxel NBG 6716
-	DEVICE_PACKAGES := kmod-rtc-pcf8563 kmod-ath10k
+  DEVICE_TITLE := Zyxel NBG 6716
+  DEVICE_PACKAGES := kmod-rtc-pcf8563 kmod-ath10k
 endef
 LEGACY_DEVICES += NBG6716