Nfc: Rename system properties in Nfc settings

The nfc properties are now added to system/libsysprop and
were renamed at the same time for homogenity.

Bug: 268219397
Test: m Settings
Change-Id: I496e128b9db225aac583a1e0b91687f78a268b63
(cherry picked from commit 94e898a02b6b25b567f7445ab9d56ee86f5b852d)
2 files changed