Fix ext_vdd-gpio to ext-vdd-gpio in 3rd source DT

Bug: 130189520
Test: Build and flash onto 3rd source PVT Fig
Change-Id: Ib0c35e7a938437fac0dc3da71a621a946e4c6808
(cherry picked from commit f19dd7654aafe0feb8cb7fdca76a2254516a25df)
2 files changed