llamafile : support s390x SIMD instruction set (ggml-org#14273)

Author: taronaeo

ggml/src/ggml-cpu/llamafile/sgemm.cpp

@@ -63,6 +63,7 @@
 #define NOINLINE __attribute__((__noinline__))
 #endif
 
+#if defined(__ARM_NEON) || defined(__AVX512F__) || defined(__VXE__) || defined(__VXE2__)
 #if defined(__ARM_NEON) || defined(__AVX512F__) || defined(__VXE__) || defined(__VXE2__)
 #define VECTOR_REGISTERS 32
 #else
@@ -253,7 +254,7 @@ template <> inline float32x4_t load(const ggml_fp16_t * p) {
     float tmp[4];
 
     for (int i = 0; i < 4; i++) {
-        tmp[i] = GGML_CPU_FP16_TO_FP32(p[i]);
+        tmp[i] = GGML_FP16_TO_FP32(p[i]);
     }
 
     return vec_xl(0, (const float *)(tmp));