It's important to note that there's more to "Hawaiian Guitar" than just your run-of-the-mill Nashville lap steel guitar. Due to its popularization in Hawaiian music during the mid-century, and the fact that Hawaiians may well be responsible for inventing it, the steel guitar is often referred to as the "Hawaiian guitar". However, the term can also mean Hawaii's distinctive "slack-key" guitar tradition.
Hawaiian slack-key guitar uses a variety of alternate tunings on a steel-strung acoustic guitar (not to be confused with a steel guitar), usually with one or more strings significantly lowered, giving it the "slack" in the name.
It also incorporates a fingerpicking style that shares a kinship with country&western fingerpicking style, but is by no means synonymous.
I'm not aware of any loop libraries with slack-key riffs, zibba, but if I spot one I'll pop back over here and let you know.
Meanwhile, this list of popular slack-key tunings might help you to get something closely approximating the Hawaiian slack-key sound out of some EXS24 steel-string acoustic guitar samples.
http://www.dancingcat.com/skbook4a-tuningchart.php