arm: baltos: drop I2C speed to 1000 Hz

This action is need to make I2C communication with PMIC
stable for low temperature. Print current I2C speed in
SPL for visual control.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>

board/vscom/baltos/board.c

@@ -184,6 +184,8 @@ void am33xx_spl_board_init(void)
 	 */
 	i2c_set_bus_num(1);
 
+	printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED);
+
 	if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
 		puts("i2c: cannot access TPS65910\n");
 		return;

include/configs/baltos.h

@@ -52,7 +52,7 @@
 
 /* I2C configuration */
 #undef CONFIG_SYS_OMAP24_I2C_SPEED
-#define CONFIG_SYS_OMAP24_I2C_SPEED 10000
+#define CONFIG_SYS_OMAP24_I2C_SPEED 1000
 
 #ifdef CONFIG_NAND
 #define CONFIG_SYS_NAND_U_BOOT_OFFS	0x000c0000