Integrate hipBLAS (AMD)

[jwijffels]

ifdef WHISPER_HIPBLAS
	ROCM_PATH   ?= /opt/rocm
	HIPCC       ?= $(ROCM_PATH)/bin/hipcc
	GPU_TARGETS ?= $(shell $(ROCM_PATH)/llvm/bin/amdgpu-arch)
	CFLAGS      += -DGGML_USE_HIPBLAS -DGGML_USE_CUBLAS
	CXXFLAGS    += -DGGML_USE_HIPBLAS -DGGML_USE_CUBLAS
	LDFLAGS     += -L$(ROCM_PATH)/lib -Wl,-rpath=$(ROCM_PATH)/lib
	LDFLAGS     += -lhipblas -lamdhip64 -lrocblas
	HIPFLAGS    += $(addprefix --offload-arch=,$(GPU_TARGETS))
	WHISPER_OBJ += ggml-cuda.o

ggml-cuda.o: ggml-cuda.cu ggml-cuda.h
	$(HIPCC) $(CXXFLAGS) $(HIPFLAGS) -x hip -c -o $@ $<
endif