ARM: STi: OF: Fix a typo in pincfg header

This patch fixes a typo for OD define in st-pincfg header file.
Reported-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>

arch/arm/boot/dts/st-pincfg.h

@@ -15,7 +15,7 @@
 /* Pull Up */
 #define PU			(1 << 26)
 /* Open Drain */
-#define OD			(1 << 26)
+#define OD			(1 << 25)
 #define RT			(1 << 23)
 #define INVERTCLK		(1 << 22)
 #define CLKNOTDATA		(1 << 21)