ACPI: processor: Replace kernel.h with the necessary inclusions

When kernel.h is used in the headers it adds a lot into dependency hell,
especially when there are circular dependencies are involved.

Replace kernel.h inclusion with the list of what is really being used.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/acpi/acpi_numa.h

@@ -3,7 +3,6 @@
 #define __ACPI_NUMA_H
 
 #ifdef CONFIG_ACPI_NUMA
-#include <linux/kernel.h>
 #include <linux/numa.h>
 
 /* Proximity bitmap length */

include/acpi/processor.h

@@ -2,11 +2,16 @@
 #ifndef __ACPI_PROCESSOR_H
 #define __ACPI_PROCESSOR_H
 
-#include <linux/kernel.h>
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/pm_qos.h>
+#include <linux/printk.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
 #include <linux/thermal.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
 #include <asm/acpi.h>
 
 #define ACPI_PROCESSOR_CLASS		"processor"