PCI: dra7xx: Use dw_pcie_link_up() consistently
PCI: dra7xx: Use dw_pcie_link_up() consistently

We already use dw_pcie_link_up() once in dra7xx_pcie_establish_link(), but
we duplicate its code later.  Use dw_pcie_link_up() for consistency.  No
functional change.

Signed-off-by: Bjorn Helgaas <f10ec01be0c6b54271af5c550cd257810bdf3268@google.com>
Acked-by: Kishon Vijay Abraham I <c224db9378a929ae8338a052bbb1b30fb46cdd39@ti.com>
Acked-by: Pratyush Anand <312638e7d640785762ded1305e88fac68d55a9ab@gmail.com>
KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs