gralloc1: Add remaining functionality

* Use private_0 flag
* Add some legacy flags to be used during transition
* Fix gralloc module version
* Adjust makefiles for gralloc1
* Add support for dump, num flex planes and lock flex.
* Use a unique ID for buffer descriptors
* Do not delete buffer handle, fix after verifying framework fix.
* Current gralloc1 clients do not conform to the lock() requirement
in the gralloc1 header. Tracked in b/33588773
* Add perform APIs to get the buffer size  and allocate a buffer
for use by SDM
* Fix reference counting
* Add a unique buffer ID
* Some cleanup in private_handle
* Create a wrapper class of private_handle to do refcounting
* Resolve implementation defined formats At allocation time, update buffer
descriptors to replace implementation defined formats with the ones we mean
to allocate
* Defer ion handle release
* Remove unused drm code.
* Add legacy constructor for private_handle_t used by some
clients

CRs-Fixed: 2007391
Change-Id: Ia9e816cec35ba45483a5b75d99f256325a010138
diff --git a/libgralloc1/gr_ion_alloc.cpp b/libgralloc1/gr_ion_alloc.cpp
index ca93a63..b76fa9f 100644
--- a/libgralloc1/gr_ion_alloc.cpp
+++ b/libgralloc1/gr_ion_alloc.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
 
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -106,21 +106,26 @@
 
   data->base = base;
   data->fd = fd_data.fd;
-  ioctl(ion_dev_fd_, INT(ION_IOC_FREE), &handle_data);
-  ALOGD_IF(DEBUG, "ion: Allocated buffer base:%p size:%zu fd:%d", data->base, ion_alloc_data.len,
-           data->fd);
+  data->ion_handle = handle_data.handle;
+  ALOGD_IF(DEBUG, "ion: Allocated buffer base:%p size:%zu fd:%d handle:0x%x", data->base,
+           ion_alloc_data.len, data->fd, data->ion_handle);
 
   return 0;
 }
 
-int IonAlloc::FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd) {
+int IonAlloc::FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd,
+                         int ion_handle) {
   ATRACE_CALL();
   int err = 0;
-  ALOGD_IF(DEBUG, "ion: Freeing buffer base:%p size:%u fd:%d", base, size, fd);
+  ALOGD_IF(DEBUG, "ion: Freeing buffer base:%p size:%u fd:%d handle:0x%x", base, size, fd,
+           ion_handle);
 
   if (base) {
     err = UnmapBuffer(base, size, offset);
   }
+  struct ion_handle_data handle_data;
+  handle_data.handle = ion_handle;
+  ioctl(ion_dev_fd_, INT(ION_IOC_FREE), &handle_data);
   close(fd);
 
   return err;