Equalizer: Check value size for get preset name Test: see CTS testAllEffectsEqualizer_CVE_2017_0401 Bug: 37536407 Change-Id: Ifa515dea10c9293022b7d0971d097f0bd727ac6c (cherry picked from commit 8cf151a63177247a370ecdef6f2e1ec0b80901d5)