i2c-nomadik: fix operator precedence warning

Fix this warning:
i2c-nomadik.c:707: warning: suggest parentheses around operand of '!' or change '&' to '&&' or '!' to '~'

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 170dbd7..73de8ad 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -704,7 +704,8 @@
 	case I2C_IT_MTD:
 	case I2C_IT_MTDWS:
 		if (dev->cli.operation == I2C_READ) {
-			while (!readl(dev->virtbase + I2C_RISR) & I2C_IT_RXFE) {
+			while (!(readl(dev->virtbase + I2C_RISR)
+				 & I2C_IT_RXFE)) {
 				if (dev->cli.count == 0)
 					break;
 				*dev->cli.buffer =