lib/ramtest: Fix ram_check() declarations

For a long time, second parameter 'stop' has been
ignored. The tested range is within 1 MiB above 'start'.

Change-Id: Icbf94cd6a651fbf0cd9aab97eb11f9b03f0c3c31
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48561
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/intel/ironlake/raminit.c

@@ -4708,7 +4708,7 @@ void raminit(const int s3resume, const u8 *spd_addrmap)
 	if (s3resume && cbmem_wasnot_inited) {
 		u32 reg32;
 		printk(BIOS_ERR, "Failed S3 resume.\n");
-		ram_check(0x100000, 0x200000);
+		ram_check_nodie(1 * MiB);
 
 		/* Clear SLP_TYPE.  */
 		reg32 = inl(DEFAULT_PMBASE + 0x04);