FIX-FIN203

[garvit984]

Fixes #78 FIN-203

Checking for Camera Permission instead of Write Permission in CustomerProfileActivity

Click on "Customer" inside the drawer.
Click on any item in the list of customers.
Click on the profile picture (by default it's the Mifos Logo)
Click on the "Share" option in the app bar.
Supposing the permission to write to external storage is not given, it'll ask for permission. When granted it should ideally call the "share image" method, but nothing happens. This is because when the Permission is being granted, it's checking for "CAMERA" permission instead of "WRITE_EXTERNAL_STORAGE" permission.
It occurs when the permission is being granted initially and later, this error does not occur.
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