sepolicy: add ufs sysfs rule for hal_health_default

avc: denied { read } for comm="health@2.0-serv" name="specification_version"
dev="sysfs" ino=52164 scontext=u:r:hal_health_default:s0
tcontext=u:object_r:sysfs:s0 tclass=file permissive=0

Bug: 146874187
Bug: 150672742
Test: boot to home and check denied logs
Change-Id: I9f99b0739e65e5e65cbabc329fad7f42e95fa770
Signed-off-by: Leo Liou <leoliou@google.com>