Utilities: explicitly add more includes found by GCC

Utilities/Log.cpp: In member function 'void logs::file_writer::log(logs::level, const char*, std::size_t)':
Utilities/Log.cpp:559:9: error: 'memcpy' is not a member of 'std'
    std::memcpy(pos, text, frag);
         ^~~~~~
Utilities/Log.cpp:559:9: note: suggested alternative: 'empty'
    std::memcpy(pos, text, frag);
         ^~~~~~
         empty
Utilities/Log.cpp:560:9: error: 'memcpy' is not a member of 'std'
    std::memcpy(m_fptr, text + frag, size - frag);
         ^~~~~~
Utilities/Log.cpp:560:9: note: suggested alternative: 'empty'
    std::memcpy(m_fptr, text + frag, size - frag);
         ^~~~~~
         empty
Utilities/Log.cpp:564:9: error: 'memcpy' is not a member of 'std'
    std::memcpy(pos, text, size);
         ^~~~~~
Utilities/Log.cpp:564:9: note: suggested alternative: 'empty'
    std::memcpy(pos, text, size);
         ^~~~~~
         empty
Utilities/sync.h: In member function 'int futex(int*, int, int, const timespec*, int*, int)::futex_map::operator()(int*, int, int, const timespec*, int*, uint)':
Utilities/sync.h:110:20: error: 'find' is not a member of 'std'
     map.erase(std::find(map.find(uaddr), map.end(), ref));
                    ^~~~
Utilities/sync.h:110:20: note: suggested alternative: 'rend'
     map.erase(std::find(map.find(uaddr), map.end(), ref));
                    ^~~~
                    rend

Utilities/Log.cpp

@@ -6,6 +6,7 @@
 #include "Utilities/sysinfo.h"
 #include "Utilities/Thread.h"
 #include "rpcs3_version.h"
+#include <cstring>
 #include <string>
 #include <unordered_map>
 #include <thread>

Utilities/sync.h

@@ -17,6 +17,7 @@
 #include <unistd.h>
 #else
 #endif
+#include <algorithm>
 #include <ctime>
 #include <chrono>
 #include <mutex>