Update Makefile to enable Vulkan and OpenMP for Linux builds

Author: Gioee

Makefile

@@ -105,8 +105,8 @@ else ifeq ($(PLATFORM),isim)
 else # linux
     TARGET := $(DIST_DIR)/ai.so
     LDFLAGS += -shared
-    LLAMA_OPTIONS += -DCMAKE_POSITION_INDEPENDENT_CODE=ON
-    WHISPER_OPTIONS += -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    LLAMA_OPTIONS += -DGGML_VULKAN=ON -DGGML_OPENMP=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+    WHISPER_OPTIONS += -DGGML_VULKAN=ON -DGGML_OPENMP=OFF -DCMAKE_POSITION_INDEPENDENT_CODE=ON
 endif
 
 # Windows .def file generation