testing/device-lg-lenok: add mainline dtb reference (MR 3491)

[ci:skip-build]: already built successfully in CI

device/testing/device-lg-lenok/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-lg-lenok
-pkgver=1
-pkgrel=21
+pkgver=1.1
+pkgrel=0
 pkgdesc="LG G Watch R"
 url="https://postmarketos.org"
 arch="armv7"
@@ -44,7 +44,7 @@ asteroid() {
 
 sha512sums="
 a36ba9017df3b4be233783096c303abafa873dcdf50f6357b82f3c5526fd161a1914dafe143377cb5982955108b987890638b51911d0dd339172554e39a82d9f  90-android-touch-dev.rules
-ba7181b27f4aad3e2d9d1d7dab7cb55956c6b67eed72060bef6c485c92f60a6c02d04fa113c0e6c6b5f077f52572bb02ecd670e3175d7e83c9b6bd76b424e2b7  deviceinfo
+470c765fee8ed7d81fa4177b682d0c4f6c138c8d472809b6a484fbd252b5ccb2911e4f21b915241b45e0757f42f8a15250cbe9ac87f7d3dc3ca8aa56d056da1d  deviceinfo
 1e72e40935d21f194cf3183fad33e8f5baeacf1458568af61f8ef7cc54c3370e63072de3d414e2ba8feddeee8f012a0d9a40ce23bbb5a47173fd92b9794846c8  fb_fix.sh
 d29105805adcd79d4f73c2f2c4483a2c627dc7b70acb77f43d085742ef930407c9b1423f7020c34f38e8a09f40cadd991b9acae23e936c90d6a4c0900250da22  initfs-hook.sh
 81cf2c20d2efa0f71f18116efeda11ae4f18fee96ba998dc4d6a36205626dce496cb36711af5c4e3215578b174942e721290cfcff8db6fb1c998b90b7345244d  machine.conf

device/testing/device-lg-lenok/deviceinfo

@@ -10,6 +10,8 @@ deviceinfo_chassis="watch"
 deviceinfo_keyboard="false"
 deviceinfo_external_storage="false"
 deviceinfo_flash_method="fastboot"
+deviceinfo_dtb_mainline="qcom-apq8026-lg-lenok"
+deviceinfo_append_dtb_mainline="true"
 deviceinfo_arch="armv7"
 
 # Splash screen