ARM: dts: msm: Add tert tdm pinctrl calls for msm8996 Agave

Add tert tdm sleep and active pinc ctrl calls for
msm8996 Agave. BE dai that uses tert tdm will enable
the required gpios associated to tert mi2s.

CRs-fixed: 988459
Change-Id: I079da664cd331ec87b3a4e488fc4f9e8c58a9439
Signed-off-by: Derek Chen <chenche@codeaurora.org>