iorapd: add tmpfs type

Fixes build breakage:
system/sepolicy/private/traced.te:36:ERROR 'unknown type iorapd_tmpfs' at token ';' on line 43166:

Bug: 123445058
Test: build marlin-userdebug
Change-Id: Iefeba03ed2efee92fb0d61214514338c6d999bd1
(cherry picked from commit 426ff11951f48c07078d7a7c4fe11a7b5ac0b184)
2 files changed