Move PL01* serial drivers to drivers/serial and adjust Makefiles.
diff --git a/drivers/Makefile b/drivers/Makefile
index 6bf05cc..1889698 100755
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -42,7 +42,7 @@
 	  s3c4510b_eth.o s3c4510b_uart.o \
 	  sed13806.o sed156x.o \
 	  serial.o serial_max3100.o \
-	  serial_pl010.o serial_pl011.o serial_xuartlite.o \
+	  serial_xuartlite.o \
 	  sil680.o sl811_usb.o sm501.o smc91111.o smiLynxEM.o \
 	  status_led.o sym53c8xx.o systemace.o ahci.o \
 	  ti_pci1410a.o tigon3.o tsec.o \