nvme: pci: Enable for SPL

Enable NVME and PCI NVMe drivers for SPL builds. Also enable PCI_PNP
for SPL which is required to auto configure the PCIe devices.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 60d98d1..84a2ae9 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -40,6 +40,12 @@
 	help
 	  Enable PCI memory and I/O space resource allocation and assignment.
 
+config SPL_PCI_PNP
+	bool "Enable Plug & Play support for PCI"
+	help
+	  Enable PCI memory and I/O space resource allocation and assignment.
+	  This is required to auto configure the enumerated devices.
+
 config PCI_REGION_MULTI_ENTRY
 	bool "Enable Multiple entries of region type MEMORY in ranges for PCI"
 	help