Update current.txt for DRM AIDL changes

Add android.hardware.drm-V1-ndk.so to
VNDK-Core for converting drm HIDL to
AIDL interface.

Test: build
  m android.hardware.drm-update-api -j128 && m -j128

Bug: 200055138
Bug: 170964303
Change-Id: Idcd0a8e444abad978c38dee204e8a8c2db2e2762