Gralloc: Implement getCustomFormatFlags API

Implement API to get custom format and private handle flags
based on a given combination of input format and usage flags.

Change-Id: Id87e9abe834fb17c6304262cc486a84131c8809a
CRs-Fixed: 2255171
diff --git a/gralloc/gr_adreno_info.cpp b/gralloc/gr_adreno_info.cpp
index 1288d92..73f9ce0 100644
--- a/gralloc/gr_adreno_info.cpp
+++ b/gralloc/gr_adreno_info.cpp
@@ -267,4 +267,11 @@
           LINK_adreno_get_aligned_gpu_buffer_size);
 }
 
+bool AdrenoMemInfo::IsPISupportedByGPU(int format, uint64_t usage) {
+  if (LINK_adreno_isPISupportedByGpu) {
+    return LINK_adreno_isPISupportedByGpu(format, usage);
+  }
+  return false;
+}
+
 }  // namespace gralloc