device-huawei-y530: Modernize APKBUILD
Modernize the APKBUILD of the Huawei Ascend Y530
Tested with weston and everything still works, other UI have problems starting Xorg, I didn't investigated the reason.
also added the missing devicepkg reference to the Samsung Galaxy S5 APKBUILD
Ref: #1577 (closed)
[x] Merge on GitHub (see https://postmarketos.org/merge)