ARM: S3C64XX: Add clock for i2c1

The clock for i2c1 has been missing for a while, add it to the list of
clocks for the system and ensure it is initialised at startup.

Signed-off-by: Ben Dooks <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>
Signed-off-by: Kukjin Kim <[e-mail]>

arch/arm/mach-s3c64xx/clock.c

···
 		.enable		= s3c64xx_pclk_ctrl,
 		.ctrlbit	= S3C_CLKCON_PCLK_IIC,
 	}, {
+		.name		= "i2c",
+		.id		= 1,
+		.parent		= &clk_p,
+		.enable		= s3c64xx_pclk_ctrl,
+		.ctrlbit	= S3C6410_CLKCON_PCLK_I2C1,
+	}, {
 		.name		= "iis",
 		.id		= 0,
 		.parent		= &clk_p,