tree d9854d39d9081bc44e1db5a781c1983345b6de20
parent 1a32ec046dbb85823eeb2fb965a594614473d719
author Thara Gopinath <thara.gopinath@linaro.org> 1500052549 -0400
committer Lisa Nguyen <lisa.nguyen@linaro.org> 1505851263 -0700

Add gpio option in the usage.

This patch adds info about -g/--gpio option in the usage section.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>