Check for ARM SIMD in testplatform

test/testplatform.c

@@ -381,6 +381,7 @@ TestCPUInfo(SDL_bool verbose)
         SDL_Log("AVX %s\n", SDL_HasAVX()? "detected" : "not detected");
         SDL_Log("AVX2 %s\n", SDL_HasAVX2()? "detected" : "not detected");
         SDL_Log("AVX-512F %s\n", SDL_HasAVX512F()? "detected" : "not detected");
+        SDL_Log("ARM SIMD %s\n", SDL_HasARMSIMD()? "detected" : "not detected");
         SDL_Log("NEON %s\n", SDL_HasNEON()? "detected" : "not detected");
         SDL_Log("System RAM %d MB\n", SDL_GetSystemRAM());
     }