imx6 has it's own pcie host driver so we do
not need the one from DW.
This fixes following boot error:
[ 0.156913] dw-pcie 1ffc000.pcie: IRQ index 1 not found
Fixes: 6d5291ff7244 ("imx6: add support for kernel 5.4")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>