Adding JNI for create random parcel

Adding an interface in random_parcel_lib and librandom_parcel_jni
to fill a parcel created by java fuzzers.

Test: m random_parcel_lib && m librandom_parcel_jni
Bug: 258075762
Change-Id: I0ecfdd676ee3881857b37cf80974d91492c4094f
3 files changed