arm64: dts: rockchip: enable second PCIe controller on the Qnap-TS433

arm64: dts: rockchip: enable second PCIe controller on the Qnap-TS433

The TS433 uses both pcie controllers for sata and the 2nd network
interface. Set the needed data-lanes in the pcie3 phy and enable
the second pcie controller, as well as remove the bifurcation comment.

Tested-by: Uwe Kleine-König <ukleinek@debian.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20240723195538.1133436-3-heiko@sntech.de
[ upstream commit: 0f5f87a1d602a33028522784eb005647fa1b5c11 ]

(cherry picked from commit 7d8f260e65cc84076ec9456954de0f136948a2c8)