i2c-ibm_iic: Fast mode parm desc fixup

Noticed this when grepping for fast mode module params, the i2c-ibm_iic
driver was using a non-existent variable for MODULE_PARM_DESC. Fix it up
to reflect what it's actually supposed to be describing.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

drivers/i2c/busses/i2c-ibm_iic.c

@@ -55,7 +55,7 @@ MODULE_PARM_DESC(iic_force_poll, "Force polling mode");
 
 static int iic_force_fast;
 module_param(iic_force_fast, bool, 0);
-MODULE_PARM_DESC(iic_fast_poll, "Force fast mode (400 kHz)");
+MODULE_PARM_DESC(iic_force_fast, "Force fast mode (400 kHz)");
 
 #define DBG_LEVEL 0