Reland "Bionic libs are located at /system/lib""

This reverts commit 0dc36eaa.

Bug: 120266448
Bug: 122534011
Test: m; device boots
Test: mmm external/vogar && vogar --verbose libcore/luni/src/test/java/libcore/libcore/icu/TimeZoneIntegrationTest.java
Test: atest --test-mapping cts/tools/vm-tests-tf/TEST_MAPPING
Test: atest CtsJniTestCases CtsCompilationTestCases

Change-Id: I806c081703e6719f85abd6c88e6bc47c1ccb1d1e