Throw Java exceptions when failing to load ICU data

When attempting to load the ICU data upon initializing JNI for
libandroid_runtime, this throws Java exceptions if there is an issue.
This can prevent later crashes if the data did not load correctly.

Flag: NONE host-only change
Bug: 396462924
Test: N/A
Change-Id: Ib50b24f7d12343669e0d32a676ee09072cb7c76c