Syntax fix for AidlConversionNDK and DeviceHalHidl

Change the legacy2aidl conversion function name so it follows other
conversion methods pattern.

Change to use RETURN_STATUS_IF_ERROR for status checking in
DeviceHalHidl.

Bug: 297875432
Test: Check log message
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a26241caf00a3cad3f167f938ceac14387320117)
Merged-In: I99a592487feb0fbd6ff8f241280d32204dc6a91b
Change-Id: I99a592487feb0fbd6ff8f241280d32204dc6a91b