CANN: Optimize CANN buffer pool memory management (#12875)

Multiple optional memory pools are provided for CANN, including VMM, 
priority queue-based, and traditional memory pools.
1.When the memory pool is available and GGML_CANN_DISABLE_VMM_POOL 
   is not defined, the VMM pool is selected by default.
2.Otherwise, if GGML_CANN_ENABLE_BUF_PRIO_POOL is defined, 
   the priority queue-based memory pool is used.
3.If neither condition is met, the default memory pool is used.

Author: bachelor-dou

ggml/src/ggml-cann/aclnn_ops.cpp

@@ -1783,7 +1783,7 @@ void ggml_cann_get_rows(ggml_backend_cann_context& ctx, ggml_tensor* dst) {
                 src0->data, ACL_INT8, sizeof(int8_t), weight_ne, weight_nb,
                 GGML_MAX_DIMS + 1);
             aclTensor* acl_scale_tensor = ggml_cann_create_tensor(
-                src0->data, ACL_FLOAT16, sizeof(float16_t), scale_ne, scale_nb,
+                src0->data, ACL_FLOAT16, sizeof(uint16_t), scale_ne, scale_nb,
                 GGML_MAX_DIMS + 1, ACL_FORMAT_ND, scale_offset);
             aclTensor* dequant_tensor = ggml_cann_create_tensor(
                 dequant_buffer_allocator.get(), ACL_FLOAT, sizeof(float_t),