arm64: dts: qcom: sc7280: Fix incorrect clock name

Replace pcie_1_pipe-clk clock name with pcie_1_pipe_clk
To match with dt binding.

Fixes: ab7772de ("arm64: dts: qcom: SC7280: Add rpmhcc clock controller node")
Signed-off-by: Prasad Malisetty <pmaliset@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1637060508-30375-2-git-send-email-pmaliset@codeaurora.org