Add pan sysprop for nap

The `define` cannot be override on runtime and some target need to
disable nap (Eg: Wear OS)

Test: manual | set the property and check new behavior
Bug: 263323082
Merged-In: I27f9ec11fd4ef50ce2f66e3329dc0394257bcc2e
Change-Id: I27f9ec11fd4ef50ce2f66e3329dc0394257bcc2e
(cherry picked from commit a786e247)