webos-image: cmake-modules-webos-native=17

:Release Notes:
WEBOS_INSTALL_PERSISTENTSTORAGEDIR is now defined correctly.

:Detailed Notes:

changes submissions/16..17
bc4ce87 Correct misspelling of directory name

:Testing Performed:
Clean local build, and verification build.

:QA Notes:
Does not affect any image. No Mini BAT required.

:Issues Addressed:
[GF-40563] CCC: cmake-modules-webos-native=17

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>

Change-Id: I21488b395052489a27fe4a44008908952fdc2475
Reviewed-on: https://g2g.palm.com/3571
Reviewed-by: Keith Derrick <keith.derrick@lge.com>
Tested-by: Keith Derrick <keith.derrick@lge.com>
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>