ContextHubClientManager: Fix logging bug

The function should not use Log.wtf as that could
crash. It should use Log.e and return an error like
other failures in this function.

Bug: 331795143
Change-Id: I52e4014b32a0f76f11d06a1c87854c58ea226364
Flag: EXEMPT bug fix
Test: Presubmits
1 file changed