i2c-algo-pca: Remove trailing whitespaces and unnecessary UTF

Remove trailing whitespaces to make further patches more readable.  Also remove
an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough).

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 496ee87..93ed325 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -78,7 +78,7 @@
 	int res = inb(base+reg);
 #ifdef DEBUG_IO
 	{
-		static char *names[] = { "STA", "DAT", "ADR", "CON" };	
+		static char *names[] = { "STA", "DAT", "ADR", "CON" };
 		printk("*** read  %s => %#04x\n", names[reg], res);
 	}
 #endif
@@ -93,7 +93,7 @@
 		ret = wait_event_interruptible(pca_wait,
 					       pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI);
 	} else {
-		while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0) 
+		while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
 			udelay(100);
 	}
 	return ret;