staging: sm750fb: remove redundant __func__ in debug statement

This patch removes the redundant __func__ from dynamic debug prints as
the pr_xxx set of functions can be dynamically controlled to include
function name.Also fix a typo in debug statement.
Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/sm750_accel.c

@@ -100,7 +100,7 @@ int hw_fillrect(struct lynx_accel *accel,
 	{
 		/* int time wait and always busy,seems hardware
 		 * got something error */
-		pr_debug("%s:De engine always bussy\n", __func__);
+		pr_debug("De engine always busy\n");
 		return -1;
 	}