Revert "samples: i2c_lsm9ds0: change hard-coded device name"

This reverts commit 81f85f4e.

Need a better solution for this, the patch itself does not solve any problem
and fails on many platforms that do not have I2C enabled.

Change-Id: I060e3d7a9992db8a1ece6da5e8d3a521f4052395
Signed-off-by: Anas Nashif <anas.nashif@intel.com>