UPSTREAM: arm64: dts: rockchip: add three new resets for rk3399 PCIe

UPSTREAM: arm64: dts: rockchip: add three new resets for rk3399 PCIe

pm_rst, aclk_rst and pclk_rst should be controlled by driver, so we
need to add these three resets for PCIe controller.

Change-Id: I364d8d0cb57d9d349153d76189f1e20e40e32704
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
(am from git.kernel.org/cgit/linux/kernel/git/next/linux-next.git
commit 4d3222f7071c01104b43300f1c10b55723df8f68)