lenovo-lxf-p5100: new device

a working downsteam port

device/testing/device-lenovo-lxf-p5100/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-lenovo-lxf-p5100
+pkgdesc="Lenovo Yoga Tab 3 10 LTE"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="postmarketos-base linux-lenovo-lxf-p5100 mkbootimg xz mdss-fb-init-hack msm-fb-refresher"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+sha512sums="
+38f17f16aa17ed85bdbd40be9bb8b098114b7deeab979858ada4ea42250de2a13aaf423168c9a3757c4eee8eb2fd0211b9a25926d7b923efc9c079b4a495edd8  deviceinfo
+"