[Kernel][ppc64][aarch64][riscv64] Fix missing OF function prototypes

Include <linux/of_device.h> when CONFIG_OF is enabled on kernels
prior to v6.4 to restore missing device-tree related function
prototypes.

Author: cyring

aarch64/corefreqk.c

@@ -40,17 +40,20 @@
 #endif
 #ifdef CONFIG_OF
 #include <linux/of.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
+#include <linux/of_device.h>
 #endif
+#endif /* CONFIG_OF */
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
 #include <acpi/processor.h>
-#endif
+#endif /* CONFIG_ACPI */
 #ifdef CONFIG_ACPI_CPPC_LIB
 #include <acpi/cppc_acpi.h>
-#endif
+#endif /* CONFIG_ACPI_CPPC_LIB */
 #ifdef CONFIG_THERMAL
 #include <linux/thermal.h>
-#endif
+#endif /* CONFIG_THERMAL */
 
 #ifdef CONFIG_HAVE_NMI
 enum {

ppc64le/corefreqk.c

@@ -38,11 +38,17 @@
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
 #include <acpi/processor.h>
-#endif
+#endif /* CONFIG_ACPI */
 #ifdef CONFIG_ACPI_CPPC_LIB
 #include <acpi/cppc_acpi.h>
-#endif
+#endif /* CONFIG_ACPI_CPPC_LIB */
 #include <asm/cputhreads.h>
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
+#include <linux/of_device.h>
+#endif
+#endif /* CONFIG_OF */
 
 #ifdef CONFIG_HAVE_NMI
 enum {

riscv64/corefreqk.c

@@ -36,16 +36,22 @@
 #ifdef CONFIG_XEN
 #include <xen/xen.h>
 #endif /* CONFIG_XEN */
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
+#include <linux/of_device.h>
+#endif
+#endif /* CONFIG_OF */
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
 #include <acpi/processor.h>
-#endif
+#endif /* CONFIG_ACPI */
 #ifdef CONFIG_ACPI_CPPC_LIB
 #include <acpi/cppc_acpi.h>
-#endif
+#endif /* CONFIG_ACPI_CPPC_LIB */
 #ifdef CONFIG_THERMAL
 #include <linux/thermal.h>
-#endif
+#endif /* CONFIG_THERMAL */
 
 #ifdef CONFIG_HAVE_NMI
 enum {