Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters

Shorten lines to under 80 characters in ddk750_swi2c.h
to rectify the following checkpatch warnings:
WARNING: line over 80 characters
Signed-off-by: Isaac Assegai <isaac.a.travers@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/ddk750_swi2c.h

@@ -69,8 +69,8 @@ long swI2CWriteReg(
 );
 
 /*
- *  These two functions are used to toggle the data on the SCL and SDA I2C lines.
- *  The used of these two functions are not recommended unless it is necessary.
+ *  These two functions toggle the data on the SCL and SDA I2C lines.
+ *  The use of these two functions is not recommended unless it is necessary.
  */
 
 /*