Read libnfc-nci.conf file after NFC Toggle.

Configs are cleared when Nfc is disabled. This change reads the
configs again if empty.

Test: nfc_test_utils passes
Test: acts test NfcBasicFunctionalityTest:test_nfc_toggle_state_100_iterations
Bug: 73076740
Change-Id: I2e115d399db598b78f0be1a8a20af23a71fc31d0
(cherry picked from commit 8cd001fd8fdef9b6e6c9133b7e922275fc94eb58)
5 files changed