libeffects: Rename effect process names.

Bug:305866207
Test: atest VtsHalHapticGeneratorTargetTest
      atest VtsHalLoudnessEnhancerTargetTest
      atest VtsHalBassBoostTargetTest
      atest VtsHalEqualizerTargetTest
      atest VtsHalVirtualizerTargetTest
      atest VtsHalVolumeTargetTest
      atest VtsHalPresetReverbTargetTest
      atest VtsHalAECTargetTest
      atest VtsHalAGC1TargetTest
      atest VtsHalAGC2TargetTest
      atest VtsHalNSTargetTest
Change-Id: Ib58a0b578493634e575ed54d22413f617f1b3a69