Add the pcie2a, pcie2a_phy, and respective tlmm nodes that are needed to
get pcie 2a controller enabled on Qdrive3.

This patch enables 4GB 64bit memory space for PCIE_2A to have BAR
allocations of 64bit pref mem needed on this Qdrive3 platform with dual
SoCs for root port and switch NT-EP. Hence this ranges property is
overridden in sa8540p-ride.dts only.

Moved tlmm node at the end as it tends to become rahter long.

Link: https://lore.kernel.org/lkml/Y49k1k8ayI9%2FrK+R@hovoldconsulting.com/Signed-off-by: Shazad Hussain <quic_shazhuss@quicinc.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221213095922.11649-1-quic_shazhuss@quicinc.com