[U-Boot] omap: overo: Configure mux for gpio10

[Steve Sakoman]

This pad was previously configured for sysclkout_1.  This patch changes
the configuration to gpio_10 to reduce radiated noise from the 26Mhz
clock, as well as make the pin more generally useful.

Signed-off-by: Steve Sakoman <steve at sakoman.com>
---

diff --git a/board/overo/overo.h b/board/overo/overo.h
index d394f90..42ef1b1 100644
--- a/board/overo/overo.h
+++ b/board/overo/overo.h
@@ -290,7 +290,7 @@ const omap3_sysinfo sysinfo = {
 	MUX_VAL(CP(SYS_BOOT5),		(IEN  | PTD | DIS | M4)) /*GPIO_7*/\
 	MUX_VAL(CP(SYS_BOOT6),		(IDIS | PTD | DIS | M4)) /*GPIO_8*/\
 	MUX_VAL(CP(SYS_OFF_MODE),	(IEN  | PTD | DIS | M0)) /*SYS_OFF_MODE*/\
-	MUX_VAL(CP(SYS_CLKOUT1),	(IEN  | PTD | DIS | M0)) /*SYS_CLKOUT1*/\
+	MUX_VAL(CP(SYS_CLKOUT1),	(IEN  | PTU | EN  | M4)) /*GPIO_10*/\
 	MUX_VAL(CP(SYS_CLKOUT2),	(IEN  | PTU | EN  | M4)) /*GPIO_186*/\
 	MUX_VAL(CP(ETK_CLK_ES2),	(IEN  | PTU | EN  | M2)) /*MMC3_CLK*/\
 	MUX_VAL(CP(ETK_CTL_ES2),	(IEN  | PTU | EN  | M2)) /*MMC3_CMD*/\