Mark PMC Pm49FL002 as tested

This chip is on my ASUS A7V8X-X mainboard.

Corresponding to flashrom svn r928.
Signed-off-by: Russ Dill <Russ.Dill@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

flashchips.c

@@ -3358,7 +3358,7 @@ struct flashchip flashchips[] = {
 		.total_size	= 256,
 		.page_size	= 16 * 1024,
 		.feature_bits	= FEATURE_REGISTERMAP | FEATURE_EITHER_RESET,
-		.tested		= TEST_UNTESTED,
+		.tested		= TEST_OK_PREW,
 		.probe		= probe_jedec,
 		.probe_timing	= TIMING_ZERO,	/* routine is wrapper to probe_jedec (pm49fl00x.c) */
 		.block_erasers	=