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>

ichspi.c

@@ -289,7 +289,6 @@ int program_opcodes(OPCODES * op)
 	uint32_t opmenu[2];
 
 	/* Program Prefix Opcodes */
-	preop = 0;
 	/* 0:7 Prefix Opcode 1 */
 	preop = (op->preop[0]);
 	/* 8:16 Prefix Opcode 2 */

m29f002.c

@@ -77,7 +77,7 @@ int write_m29f002t(struct flashchip *flash, uint8_t *buf) {
 	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;