[Passpoint] Add more check to limit the config size

Bug: 245299920
Test: atest con.android.server.wifi
Merged-In: I97522ce3607547c10025caa107cd1a40455a9c5d
Change-Id: I97522ce3607547c10025caa107cd1a40455a9c5d
(cherry picked from commit c13de6409ec5f781582f0c137bd63626501c6c58)
Merged-In: I97522ce3607547c10025caa107cd1a40455a9c5d
4 files changed