VM: vm_memset_physical(): Correct length parameter type

headers/private/kernel/vm/vm.h

@@ -149,7 +149,7 @@ off_t vm_available_not_needed_memory(void);
 off_t vm_available_not_needed_memory_debug(void);
 size_t vm_kernel_address_space_left(void);
 
-status_t vm_memset_physical(phys_addr_t address, int value, size_t length);
+status_t vm_memset_physical(phys_addr_t address, int value, phys_size_t length);
 status_t vm_memcpy_from_physical(void* to, phys_addr_t from, size_t length,
 			bool user);
 status_t vm_memcpy_to_physical(phys_addr_t to, const void* from, size_t length,

src/system/kernel/vm/vm.cpp

@@ -4975,7 +4975,7 @@ vm_resize_area(area_id areaID, size_t newSize, bool kernel)
 
 
 status_t
-vm_memset_physical(phys_addr_t address, int value, size_t length)
+vm_memset_physical(phys_addr_t address, int value, phys_size_t length)
 {
 	return sPhysicalPageMapper->MemsetPhysical(address, value, length);
 }