Add remaining missing HIDL SystemApi methods.

A couple methods of Java classes which became SystemApis
but were used are still @hide.

Bug: 72480743
Test: hidl_test_java
Change-Id: I0cb82384932ab1758fa7576b2125825c48a4a6c9
Merged-In: I0cb82384932ab1758fa7576b2125825c48a4a6c9
(cherry picked from commit adcb896fd6e476f277d6f1d20e2e50b8e81c4369)
4 files changed