ARM: imx: Call imx_pcie_remove() only for non-DM PCI driver

The DM iMX PCI driver has DM_FLAG_OS_PREPARE set and will call
imx_pcie_remove() from the .remove callback. Do not call it from
the architecture code again.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 6b83f92..93e60b2 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -285,7 +285,7 @@
 
 void arch_preboot_os(void)
 {
-#if defined(CONFIG_PCIE_IMX)
+#if defined(CONFIG_PCIE_IMX) && !CONFIG_IS_ENABLED(DM_PCI)
 	imx_pcie_remove();
 #endif
 #if defined(CONFIG_SATA)