powerpc: Use valid prototypes for function declarations with no arguments.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D39733

sys/contrib/ncsw/user/env/core.c

@@ -33,7 +33,7 @@
 #include "types_ext.h"
 #include "core_ext.h"
 
-uint32_t E500_GetId()
+uint32_t E500_GetId(void)
 {
 	return PCPU_GET(cpuid);
 }

sys/powerpc/aim/mmu_oea.c

@@ -1311,7 +1311,7 @@ moea_extract_and_hold(pmap_t pmap, vm_offset_t va, vm_prot_t prot)
 }
 
 void
-moea_init()
+moea_init(void)
 {
 
 	moea_upvo_zone = uma_zcreate("UPVO entry", sizeof (struct pvo_entry),
@@ -2775,7 +2775,7 @@ moea_dumpsys_map(vm_paddr_t pa, size_t sz, void **va)
 extern struct dump_pa dump_map[PHYS_AVAIL_SZ + 1];
 
 void
-moea_scan_init()
+moea_scan_init(void)
 {
 	struct pvo_entry *pvo;
 	vm_offset_t va;

sys/powerpc/booke/pmap.c

@@ -1054,7 +1054,7 @@ mmu_booke_kextract(vm_offset_t va)
  * system needs to map virtual memory.
  */
 static void
-mmu_booke_init()
+mmu_booke_init(void)
 {
 	int shpgperproc = PMAP_SHPGPERPROC;
 
@@ -2119,7 +2119,7 @@ mmu_booke_dumpsys_unmap(vm_paddr_t pa, size_t sz, void *va)
 extern struct dump_pa dump_map[PHYS_AVAIL_SZ + 1];
 
 void
-mmu_booke_scan_init()
+mmu_booke_scan_init(void)
 {
 	vm_offset_t va;
 	pte_t *pte;
@@ -2822,7 +2822,7 @@ tlb1_mapin_region(vm_offset_t va, vm_paddr_t pa, vm_size_t size, int wimge)
  * assembler level setup done in locore.S.
  */
 void
-tlb1_init()
+tlb1_init(void)
 {
 	vm_offset_t mas2;
 	uint32_t mas0, mas1, mas3, mas7;

sys/powerpc/cpufreq/mpc85xx_jog.c

@@ -121,7 +121,7 @@ static struct ofw_compat_data jog_compat[] = {
 };
 
 static struct ofw_compat_data *
-mpc85xx_jog_devcompat()
+mpc85xx_jog_devcompat(void)
 {
 	phandle_t node;
 	int i;

sys/powerpc/powerpc/elf32_machdep.c

@@ -407,7 +407,7 @@ elf_cpu_unload_file(linker_file_t lf __unused)
 }
 
 static void
-ppc32_runtime_resolve()
+ppc32_runtime_resolve(void)
 {
 
 	/*