Description

Steps to reproduce the issue:
1.update latest code from github in branch 201811 at 2019.07.31.
2.make configure PLATFORM=barefoot and BLDENV=stretch make stretch.
3.make all

Describe the results you received:
g++ -DHAVE_CONFIG_H -I. -I.. -I .. -I ../warmrestart -g -DNDEBUG -std=c++11 -Wall -fPIC -Wno-write-strings -I/usr/include/libnl3 -I/usr/include/swss -I/opt/bfn/install/include/switchsai -Werror -Wno-reorder -Wcast-align -Wcast-qual -Wconversion -Wdisabled-optimization -Wextra -Wfloat-equal -Wformat=2 -Wformat-nonliteral -Wformat-security -Wformat-y2k -Wimport -Winit-self -Winvalid-pch -Wlong-long -Wmissing-field-initializers -Wmissing-format-attribute -Wno-aggregate-return -Wno-padded -Wno-switch-enum -Wno-unused-parameter -Wpacked -Wpointer-arith -Wredundant-decls -Wstack-protector -Wstrict-aliasing=3 -Wswitch -Wswitch-default -Wunreachable-code -Wunused -Wvariadic-macros -Wno-switch-default -Wno-long-long -Wno-redundant-decls -I /usr/include/sai -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -c -o orchagent-portsorch.o test -f 'portsorch.cpp' || echo './'portsorch.cpp
In file included from /usr/include/sai/sai_meta.h:6:0,
from /usr/include/sai/sai_serialize.h:18,
from portsorch.cpp:21:
/usr/include/sai/saimetadata.h:7:27: fatal error: saiextensions.h: No such file or directory
#include <saiextensions.h>
^
compilation terminated.
Makefile:654: recipe for target 'orchagent-portsorch.o' failed

Describe the results you expected:
I find the saiextensions.h file in libsaivs-deb_1.0.0_amd64.deb, but this package was not installed.

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```
(paste your output here)
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```