Pin robotest-internal < 3.5.1 to OpenJDK 8.

We bundle prebuilt robolectric 3.1.1, 3.4.2, and 3.5.1
Robolectric 3.5.1 and ASM 6 are required to run under
OpenJDK 9. Robolectric 3.5.1 was just updated to ASM 6
in commit 23bf41e4
(Change-Id I0a52b4d61df7a9aef913e86c35fdb9022d83ff63).

This CL pins robolectric 3.1.1 and 3.4.2 to run under
OpenJDK 9.

Test: EXPERIMENTAL_USE_OPENJDK9=1.8 make -j30 \
  RunSettingsRoboTests RunSettingsRoboTests-jacoco \
  RunSettingsLibRoboTests RunSettingsLibRoboTests-jacoco \
  RunSettingsGoogleRoboTests RunSettingsGoogleRoboTests-jacoco \
  RunSuwRoboTests RunSuwRoboTests-jacoco \
  RunTurboRoboTests \
  RunStorageManagerRoboTests \
  RunTvSettingsRoboTests RunTvSettingsRoboTests-jacoco

Bug: 70286093

Change-Id: I0f2ab28cb41e34781c349f912743ad54d2c02ab3
Merged-In: I0f2ab28cb41e34781c349f912743ad54d2c02ab3