Fixing upstream compatibility (kpowerdevil builddepend errors)

Currently, the fix upstream compatibility test is failing. That is, because kpowerdevil needs to be rebuilt, as it currently depends on a non-existing so:libkworkspace5.so.5.

Unfortunately, when trying to rebuild (with --strict) it, it fails with:

>>> powerdevil: Building pmos/powerdevil 5.15.5-r2 (using abuild 3.4.0_rc4-r0) started Sat, 01 Jun 2019 20:09:36 +0000
>>> powerdevil: Checking sanity of /home/pmos/build/APKBUILD...
>>> powerdevil: Analyzing dependencies...
ERROR: unsatisfiable constraints:
  attica-qt-5.58.0-r1:
    conflicts: attica-5.58.0-r0[so:libKF5Attica.so.5=5.58.0]
    satisfies: attica-qt-dev-5.58.0-r1[attica-qt=5.58.0-r1]
               knewstuff-5.58.0-r0[so:libKF5Attica.so.5]
               kxmlgui-5.58.0-r0[so:libKF5Attica.so.5]
  phonon-qt5-4.9.1-r1:
    conflicts: phonon-4.10.2-r1[so:libphonon4qt5.so.4=4.9.1]
               phonon-4.10.2-r1[so:libphonon4qt5experimental.so.4=4.9.1]
    satisfies: phonon-qt5-dev-4.9.1-r1[phonon-qt5=4.9.1-r1]
               plasma-workspace-5.15.5-r3[so:libphonon4qt5.so.4]
               knotifyconfig-5.58.0-r0[so:libphonon4qt5.so.4]
               knotifications-5.58.0-r0[so:libphonon4qt5.so.4]
  attica-5.58.0-r0:
    conflicts: attica-qt-5.58.0-r1[so:libKF5Attica.so.5=5.58.0]
    satisfies: attica-dev-5.58.0-r0[attica=5.58.0-r0]
               knewstuff-5.58.0-r0[so:libKF5Attica.so.5]
               kxmlgui-5.58.0-r0[so:libKF5Attica.so.5]
  attica-dev-5.58.0-r0:
    conflicts: attica-qt-dev-5.58.0-r1[pc:libKF5Attica=..]
    satisfies: kxmlgui-dev-5.58.0-r0[attica-dev]
  phonon-4.10.2-r1:
    conflicts: phonon-qt5-4.9.1-r1[so:libphonon4qt5.so.4=4.10.2]
               phonon-qt5-4.9.1-r1[so:libphonon4qt5experimental.so.4=4.10.2]
    satisfies: phonon-dev-4.10.2-r1[phonon=4.10.2-r1]
               plasma-workspace-5.15.5-r3[so:libphonon4qt5.so.4]
               knotifyconfig-5.58.0-r0[so:libphonon4qt5.so.4]
               knotifications-5.58.0-r0[so:libphonon4qt5.so.4]
  phonon-dev-4.10.2-r1:
    conflicts: phonon-qt5-dev-4.9.1-r1[pc:phonon4qt5=4.10.2]
    satisfies: knotifications-dev-5.58.0-r0[phonon-dev]
  attica-qt-dev-5.58.0-r1:
    conflicts: attica-dev-5.58.0-r0[pc:libKF5Attica=..]
    satisfies: plasma-workspace-dev-5.15.5-r3[attica-qt-dev]
               kwin-dev-5.15.5-r2[attica-qt-dev]
  phonon-qt5-dev-4.9.1-r1:
    conflicts: phonon-dev-4.10.2-r1[pc:phonon4qt5=4.9.1]
    satisfies: plasma-workspace-dev-5.15.5-r3[phonon-qt5-dev]
>>> ERROR: powerdevil: builddeps failed

I'm looking into it right now.