xfree86: Remove remaining return FALSE from configServerFlags

Remove the error return path from the FLAG_PIXMAP path and leave the
default value in place. There's no point skipping the rest of this
function.

Signed-off-by: Keith Packard <keithp@keithp.com>

hw/xfree86/common/xf86Config.c

@@ -1011,7 +1011,7 @@ configServerFlags(XF86ConfFlagsPtr flagsconf, XF86OptionPtr layoutopts)
         break;
     default:
         ErrorF("Pixmap option's value (%d) must be 24 or 32\n", i);
-        return FALSE;
+        break;
     }
     if (xf86Pix24 != Pix24DontCare) {
         xf86Info.pixmap24 = xf86Pix24;