mm-video: vdec: initialize m_native_buffers_enabled flag appropriately

Initializing m_native_buffers_enabled flag in init_members() is causing
session failures because init_members() will be called from free_buffer()
during port reconfiguration and following use_output_buffer() fails.
So remove initializing the flag from init_members() and initialize it
in constructor.

Change-Id: I75fc5517133a4afc80d7361793020b15e3f83a9a

Author: c_sridur

mm-video/vidc/vdec/src/omx_vdec.cpp

@@ -10146,6 +10146,7 @@ omx_vdec::allocate_color_convert_buf::allocate_color_convert_buf()
   init_members();
   ColorFormat = OMX_COLOR_FormatMax;
   dest_format = YCbCr420P;
+  m_native_buffers_enabled = false;
 }
 
 void omx_vdec::allocate_color_convert_buf::set_vdec_client(void *client)
@@ -10164,7 +10165,6 @@ void omx_vdec::allocate_color_convert_buf::init_members() {
   memset(op_buf_ion_info,0,sizeof(m_platform_entry_client));
   for (int i = 0; i < MAX_COUNT;i++)
     pmem_fd[i] = -1;
-  m_native_buffers_enabled = false;
 }
 
 omx_vdec::allocate_color_convert_buf::~allocate_color_convert_buf() {