pflash_cfi02.c: fix debug macro

If PFLASH_DEBUG is enabled then we have some build errors:

hw/block/pflash_cfi02.c: In function ‘pflash_timer’:
hw/block/pflash_cfi02.c:128:5: error: expected ‘)’ before string constant
hw/block/pflash_cfi02.c:128:5: error: too few arguments to function ‘fprintf’

This patch fixes the problem.
Signed-off-by: NAntony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

hw/block/pflash_cfi02.c

@@ -47,7 +47,7 @@
 #ifdef PFLASH_DEBUG
 #define DPRINTF(fmt, ...)                                  \
 do {                                                       \
-    fprintf(stderr "PFLASH: " fmt , ## __VA_ARGS__);       \
+    fprintf(stderr, "PFLASH: " fmt , ## __VA_ARGS__);       \
 } while (0)
 #else
 #define DPRINTF(fmt, ...) do { } while (0)