Add missing newline to health/wifi AIDL interfaces

This change adds a missing newline character to the end of dump() for
the default health and wifi int

Add missing newline to health/wifi AIDL interfaces

This change adds a missing newline character to the end of dump() for
health and wifi.

Test: Take a bugreport and verify that the "X was the duration of
      dumpsys Y" lines aren't preceded by the final line of the dump.
Test: Run "dumpsys android.hardware.health.IHealth/default" and verify
      that the new line exists.
Test: Run "dumpsys android.hardware.wifi.IWifi/default" and verify that
      the new line exists.
Bug: 278081288
Change-Id: I173dd174b5bab808c6296f7163982393e60ba0c6