nvme: Split out PCI support

Apple SoCs have an integrated NVMe controller that isn't connected
over a PCIe bus. In preparation for adding support for this NVMe
controller, split out the PCI support into its own file. This file
is selected through a new CONFIG_NVME_PCI Kconfig option, so do
a wholesale replacement of CONFIG_NVME with CONFIG_NVME_PCI.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested on: Macbook Air M1
Tested-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/rock-pi-n10-rk3399pro_defconfig b/configs/rock-pi-n10-rk3399pro_defconfig
index bd8b120..c066d91 100644
--- a/configs/rock-pi-n10-rk3399pro_defconfig
+++ b/configs/rock-pi-n10-rk3399pro_defconfig
@@ -42,7 +42,7 @@
 CONFIG_DM_ETH=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_GMAC_ROCKCHIP=y
-CONFIG_NVME=y
+CONFIG_NVME_PCI=y
 CONFIG_PCI=y
 CONFIG_PHY_ROCKCHIP_INNO_USB2=y
 CONFIG_PHY_ROCKCHIP_TYPEC=y