pci: Drop DM_PCI

This option has not effect now. Drop it, using PCI instead where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 6b1f10d..a5cec38 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -17,7 +17,7 @@
 	select BOARD_EARLY_INIT_R
 	select DM
 	select DM_SERIAL
-	select DM_PCI
+	select PCI
 	select DM_ETH
 	select DYNAMIC_IO_PORT_BASE
 	select MIPS_CM