include: Fix spelling

Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3755
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/include/uart8250.h b/src/include/uart8250.h
index d42e822..e6a318a 100644
--- a/src/include/uart8250.h
+++ b/src/include/uart8250.h
@@ -63,7 +63,7 @@
 #define   UART_LCR_WLS_7	0x02 /* 7 bit character length */
 #define   UART_LCR_WLS_8	0x03 /* 8 bit character length */
 #define   UART_LCR_STB		0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */
-#define   UART_LCR_PEN		0x08 /* Parity eneble */
+#define   UART_LCR_PEN		0x08 /* Parity enable */
 #define   UART_LCR_EPS		0x10 /* Even Parity Select */
 #define   UART_LCR_STKP		0x20 /* Stick Parity */
 #define   UART_LCR_SBRK		0x40 /* Set Break */