arm64: dts: qcom: sc7280: Add volume up support for sc7280-idp

Add pm7325 PMIC gpio support for vol+ on sc7280-idp.

Signed-off-by: satya priya <skakit@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631877040-26587-1-git-send-email-skakit@codeaurora.org