Show correct security type for PasspointConfiguration

Security type for PasspointConfiguration is not shown
correctly on Wi-Fi detail screen because AccessPoint.java
does not return correct security string via getSecurityString().

Bug: 62182395
Test: manual

Change-Id: I76436d7efbf18b6f5478d35f02fac3dfcae2be53
Singed-off-by Tomonori Nanbu <tomonori.nanbu@sonymobile.com>
1 file changed