Kconfig: Migrate CONFIG_BAUDRATE

Move this in to Kconfig with a default of 115200.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[trini: Run moveconfig.py, reword commit slightly]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/PATI_defconfig b/configs/PATI_defconfig
index 1e2e285..d8262eb 100644
--- a/configs/PATI_defconfig
+++ b/configs/PATI_defconfig
@@ -22,3 +22,4 @@
 # CONFIG_MMC is not set
 CONFIG_MTD_NOR_FLASH=y
 # CONFIG_PCI is not set
+CONFIG_BAUDRATE=9600