uart: Redefine Kconfig options

Option DRIVERS_UART builds with support for UART hardware.
Option CONSOLE_SERIAL enables the console output for UART.

Those x86 boards that do not have serial port on SuperIO should select
NO_UART_ON_SUPERIO to disable 8250 UART for the default configuration.

Removes:
  CONSOLE_SERIAL_UART
  HAVE_UART_IO_MAPPED
  HAVE_UART_MEMORY_MAPPED

Renames:
  CONSOLE_SERIAL8250     ->  DRIVERS_UART_8250IO
  CONSOLE_SERIAL8250MEM  ->  DRIVERS_UART_8250MEM

Change-Id: Id3afa05f85c0d6849746886db8b6c2ed6c846b61
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5311
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc
index 4169a2e..844b835 100644
--- a/src/cpu/samsung/exynos5420/Makefile.inc
+++ b/src/cpu/samsung/exynos5420/Makefile.inc
@@ -9,7 +9,7 @@
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c
-ifeq ($(CONFIG_CONSOLE_SERIAL_UART),y)
+ifeq ($(CONFIG_DRIVERS_UART),y)
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c
 endif
 bootblock-y += wakeup.c
@@ -25,7 +25,7 @@
 romstage-y += power.c
 romstage-y += mct.c
 romstage-y += monotonic_timer.c
-ifeq ($(CONFIG_CONSOLE_SERIAL_UART),y)
+ifeq ($(CONFIG_DRIVERS_UART),y)
 romstage-$(CONFIG_EARLY_CONSOLE) += uart.c
 endif
 romstage-y += wakeup.c
@@ -40,7 +40,7 @@
 ramstage-y += clock_init.c
 ramstage-y += pinmux.c
 ramstage-y += power.c
-ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c
+ramstage-$(CONFIG_DRIVERS_UART) += uart.c
 ramstage-y += cpu.c
 ramstage-y += tmu.c
 ramstage-y += mct.c