gbsim/loopback_test: read debugfs data as a string
gbsim/loopback_test: read debugfs data as a string

The debugfs seq_printf() routine is returning a string not binary uint32
data. As a result we need to read and write the data as a string not a
uint32.

Signed-off-by: Bryan O'Donoghue <165dc05575478af93ac2f97f67be6e1756010094@linaro.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@google.com>

projectara/gbsim,gregkh/gbsim,projectara/gbsim,gregkh/gbsim