[LSC] Add LOCAL_LICENSE_KINDS to hardware/qcom/audio

Added SPDX-license-identifier-Apache-2.0 to:
  hal/Android.mk
  post_proc/Android.mk
  visualizer/Android.mk
  voice_processing/Android.mk

Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD to:
  legacy/alsa_sound/Android.mk

Added SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD
    SPDX-license-identifier-LGPL
to:
  legacy/libalsa-intf/Android.mk

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: I2ffc382d8a925e559275dc2c0a4359d54fa87e09