drivers/ipmi/ocp/ipmi_ocp.c: Clean up includes

Remove #include "chip.h", which is not needed and causes a build
problem in a later change. Alphabetise the #includes. Add <types.h>.

Change-Id: If19ccd144bd352a196adccd75f9f6f139eae4e4a
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45968
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/drivers/ipmi/ocp/ipmi_ocp.c

@@ -7,14 +7,15 @@
  * end
  */
 
+#include <arch/cpu.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <device/pnp.h>
-#include <string.h>
+#include <drivers/ipmi/ipmi_kcs.h>
 #include <intelblocks/cpulib.h>
-#include <arch/cpu.h>
-#include "chip.h"
-#include "drivers/ipmi/ipmi_kcs.h"
+#include <string.h>
+#include <types.h>
+
 #include "ipmi_ocp.h"
 
 static int ipmi_set_processor_information_param1(struct device *dev)