[Dependency Update] Upgrade the libpng to 1.6.35

[stu1130]

Description

Upgrade the libpng package to 1.6.35 due to following issues at 1.6.34.

1. SEGV in function png_free_data more on link1, link2
2. Division by zero causes LibPNG to crash more on link

Note that the latest stable version is 1.6.36 but has one memory leak issue
memory leak in png_create_info_struct

Checklist

Essentials

• CI check for scala publish build
• CI check for python publish build
• CI check for python gpu publish build
• Ubuntu 16.04 cu100mkl publish build
• Ubuntu 16.04 mkl publish build
• No Performance regression on Imdecode (the script is shown below)

with open('image.jpg', 'rb') as fp:
    str_image = fp.read()

    start = time.time()
for i in range(100):
    image = mx.img.imdecode(str_image)
    image.asnumpy()
print(time.time() - start)

Changes

Comments

[piyushghai]

Thanks for your contributions @stu1130. The CI seems to be failing. Can you look into this ?
@mxnet-label-bot Add [Build, pr-awaiting-review]

[vandanavk]

@marcoabreu @perdasilva for review