nvgpu_clk_arb_install_fd() leaks dev if it cannot create an fd,
and it leaks both dev and fd if it fails to create a file.
Change-Id: I65c03401dba44d88be543d3aec2fa3fcd2fb0dcc
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1279225
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>