Update getCodeType() docs for RINEX4.0

Update the Javadocs based on doc:https://docs.google.com/document/d/1SliduwZ8TlV5kMDZpxM5CUg-Txsw3IxBe8JTnr_ZOl0/edit?resourcekey=0-HTfqV3iJLkQtaMp_lsy3Vg

Test: change Javadoc only.
Bug: 277260039
Change-Id: Ib42811a6490525df5a1072f79e78c01529bec1a6
1 file changed