sepolicy: Add policies for USB HVDCP (quickcharge) daemon

Following warnings are fixed:
type=1400 audit(14625.669:5): avc:  denied  { read write } for  pid=307
comm="hvdcp" name="usb_ext_chg" dev="tmpfs" ino=10047 scontext=u:r:hvdcp:s0
tcontext=u:object_r:hvdcp_device:s0 tclass=chr_file
type=1400 audit(14625.689:6): avc:  denied  { open } for  pid=307 comm=
"hvdcp" path="/dev/usb_ext_chg" dev="tmpfs" ino=10047 scontext=u:r:hvdcp:s0
tcontext=u:object_r:hvdcp_device:s0 tclass=chr_file

type=1400 audit(14625.709:7): avc:  denied  { write } for  pid=307 comm=
"hvdcp" name="voltage_max" dev="sysfs" ino=22190 scontext=u:r:hvdcp:s0
tcontext=u:object_r:sysfs:s0 tclass=file

type=1400 audit(14625.729:8): avc:  denied  { setgid } for  pid=307 comm=
"hvdcp" capability=6  scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=capability

type=1400 audit(14625.739:9): avc:  denied  { add_name } for  pid=307
comm="hvdcp" name="9999" scontext=u:r:hvdcp:s0
tcontext=u:object_r:cgroup:s0 tclass=dir

type=1400 audit(14625.759:10): avc:  denied  { create } for  pid=307
comm="hvdcp" name="9999" scontext=u:r:hvdcp:s0
tcontext=u:object_r:cgroup:s0 tclass=dir

type=1400 audit(14625.769:11): avc:  denied  { setuid } for  pid=307
comm="hvdcp" capability=7  scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=capability

type=1400 audit(14625.000:12): avc:  denied  { ioctl } for  pid=307
comm="hvdcp" path="/dev/usb_ext_chg" dev="tmpfs" ino=10047
scontext=u:r:hvdcp:s0 tcontext=u:object_r:hvdcp_device:s0 tclass=chr_file

type=1400 audit(14625.019:13): avc:  denied  { create } for  pid=307
comm="hvdcp" scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=netlink_kobject_uevent_socket

type=1400 audit(86404.769:17): avc:  denied  { read } for  pid=307
comm="hvdcp" scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=netlink_kobject_uevent_socket

type=1400 audit(86542.809:873819): avc:  denied  { setopt } for  pid=307
comm="hvdcp " scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=netlink_kobject_uevent_socket

type=1400 audit(86542.819:873820): avc:  denied  { bind } for  pid=307
comm="hvdcp" scontext=u:r:hvdcp:s0 tcontext=u:r:hvdcp:s0
tclass=netlink_kobject_uevent_socket

type=1400 audit(86462.869:18): avc:  denied  { ioctl } for  pid=307
comm="hvdcp" path="/dev/usb_ext_chg" dev="tmpfs" ino=10047
scontext=u:r:hvdcp:s0 tcontext=u:object_r:hvdcp_device:s0 tclass=chr_file

type=1400 audit(86435.289:143): avc:  denied  { write } for  pid=307
comm="hvdcp" name="input_current_max" dev="sysfs" ino=27645
scontext=u:r:hvdcp:s0 tcontext=u:object_r:sysfs:s0 tclass=file

type=1400 audit(20903.139:39): avc:  denied  { search } for  pid=307
comm="hvdcp" name="battery" dev="sysfs" ino=27626 scontext=u:r:hvdcp:s0
tcontext=u:object_r:sysfs_battery_supply:s0 tclass=dir

Change-Id: I32e1b25eb0d98710434d33da692a42df6116d2fa