dispvm: use < 3.12 kernel if possible (#868)
dispvm: use < 3.12 kernel if possible (#868)

3.12+ is known to have broken balloon driver after save+restore.

woju/qubes-core-admin,marmarek/qubes-core-admin,marmarek/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin