ipq807x: include u-boot-envtools by default

Most if not all IPQ807x boards have accessible u-boot environment, and
some will even require access for flashing/upgrading so include the
u-boot-envtools by default.

Signed-off-by: Robert Marko <robimarko@gmail.com>

target/linux/ipq807x/Makefile

@@ -15,6 +15,6 @@ DEFAULT_PACKAGES += \
 	kmod-usb3 kmod-usb-dwc3 kmod-usb-dwc3-qcom \
 	kmod-leds-gpio kmod-gpio-button-hotplug \
 	ath11k-firmware-ipq8074 kmod-ath11k-ahb \
-	wpad-basic-wolfssl
+	wpad-basic-wolfssl uboot-envtools
 
 $(eval $(call BuildTarget))