ARM: dts: msm: Add Euro usbc support for 670 internal codec

For sdm670 internal codec gnd-mic-swap-gpio is present but
is not enabled in overlay. Add this support for Euro headset
for usbc so that switch is flipped in this case.

CRs-Fixed: 2164365
Change-Id: I968ff5e6330ffed2d921860e175664db7d5a6ab4
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>