atan2f libc HLE

src/Emulator/HLE/Libraries/LibC/libc.cpp

@@ -2,6 +2,7 @@
 
 #include <debug.h>
 
+#include <cmath>
 #include <cstdlib>
 #include <cstring>
 
@@ -42,4 +43,6 @@ char* PS4_SYSV_ABI strncpy(char* dest, const char* src, size_t count) { return s
 
 void* PS4_SYSV_ABI memmove(void* dest, const void* src, std::size_t count) { return std::memmove(dest, src, count); }
 
+float PS4_SYSV_ABI atan2f(float y, float x) { return std::atan2f(y, x); }
+
 };  // namespace Emulator::HLE::Libraries::LibC