Rename the runtime linker namespace following ART/Runtime APEX split.

Remove the kludge in libnativeloader to deal with the inconsistency wrt the
name of the APEX package.

Test: Build & boot
Test: atest system/core/libnativeloader (on cf_x86_phone)
Bug: 139408016
Change-Id: I6115b49237c78c2ea4aa943ca4fe0b296b5a2b62
7 files changed