staging: hp100: Add space between while keyword and open parenthesis

Add space between while keyword and open parenthesis "(" in the do while
statement to improve code readability and to adhere to the Linux Kernel
coding style.
Reported by checkpatch.pl
Signed-off-by: Soumyajit Deb <debsoumyajit100@gmail.com>
Link: https://lore.kernel.org/r/20200325115956.37126-1-debsoumyajit100@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/hp/hp100.c

@@ -2977,7 +2977,7 @@ static void hp100_isa_cleanup(void)
 }
 #else
 #define hp100_isa_init()	(0)
-#define hp100_isa_cleanup()	do { } while(0)
+#define hp100_isa_cleanup()	do { } while (0)
 #endif
 
 static int __init hp100_module_init(void)