libkeymaster1 split to libkeymaster and _portable

libkeyamster1 was split into libkeymaster and
libkeymaster_portable.
Also removed UniquePtr usage from keymaster hal.

Bug: 37467707
Test: keymaster vts test and keystore cts test
Merged-In: Ic660586d3d9cfd20022a9c694f276da89e796e5d
(cherry picked from commit 85e15db3)

Change-Id: I8652f28ac3da1999a774be5e1110c7d2efac5339