def-tool: Add libdl_android for LLNDK-Private

This commit adds libdl_android.so as an LLNDK-Private lib (used by
`libvndksupport.so`).

Bug: 130270919
Test: ./vndk_definition_tool.py deps-insight \
      --tag-file datasets/eligible-list-29.csv \
      --system ${ANDROID_PRODUCT_OUT}/system \
      --system ${ANDROID_PRODUCT_OUT}/vendor

Change-Id: Ic96e9e14620d75eb1884b9a06f0b0690df7138e0
1 file changed