Addressing bootup denials

Addressing the following denials:
avc: denied { create } for name="sdcard" scontext=u:r:init:s0
tcontext=u:object_r:tmpfs:s0 tclass=lnk_file permissive=1

avc: denied { create } for name="hdmi" scontext=u:r:qti_init_shell:s0
tcontext=u:object_r:graphics_device:s0 tclass=lnk_file permissive=1

avc: denied { mounton } for path="/persist" dev="rootfs" ino=15233
scontext=u:r:init:s0 tcontext=u:object_r:persist_file:s0 tclass=dir permissive=1

Change-Id: I2aa10420f2766871c56f0965ad28b7f6972180e4