[Uwb] Wait for POST_INIT_CPLT after calling core init am: c32f2bf2b3

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3555007

Change-Id: Ib9970267b007a1361b3696e52e2782e69dfdd48d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>