Fix one dead increment and one dead assignment as found by clang

Thanks Patrick!

Corresponding to flashrom svn r410 and coreboot v2 svn r3918.

Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
diff --git a/m29f002.c b/m29f002.c
index a836587..8afef79 100644
--- a/m29f002.c
+++ b/m29f002.c
@@ -77,7 +77,7 @@
 	do_block(bios, buf, i++, 0x30000, 32*1024);
 	do_block(bios, buf, i++, 0x38000, 8*1024);
 	do_block(bios, buf, i++, 0x3a000, 8*1024);
-	do_block(bios, buf, i++, 0x3c000, 16*1024);
+	do_block(bios, buf, i, 0x3c000, 16*1024);
 
 	printf("\n");
 	return 0;