Adding Power support to the package -Installation of Condo not available for ppc64le
#### Is your feature request related to a problem?
I wish to use pandas to support ppc64le cpu arch

#### Describe the solution you'd like
need tom modify this script ci/setup_env.sh to incorporate ppc64le in script and also the below works fine for conda installation in ppc64le

 

#### API breaking implications

NA

#### Describe alternatives you've considered

ie .  CONDA_URL for ppc64le as below ,it works well in install conda and add package on using conda install
 https://repo.anaconda.com/miniconda/Miniconda2-latest-Linux-ppc64le.sh 

#### Additional context

N/A
```python
if [ "${TRAVIS_CPU_ARCH}" == "ppc64le" ]; then
  CONDA_URL=" https://repo.anaconda.com/miniconda/Miniconda2-latest-Linux-ppc64le.sh "
  bash miniconda.sh -b -p $HOME/miniconda;