rtc: imxdi: when locked, do not fail silently
rtc: imxdi: when locked, do not fail silently

If the DryICE unit is locked it is impossible to set the time. Provide an
error message for this case.

Signed-off-by: Juergen Borleis <78de07fffa2d6416458d1c13286e3f53f43d72e9@pengutronix.de>
Signed-off-by: Robert Schwebel <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@pengutronix.de>
[rsc: got NDA clearance from Freescale]
Signed-off-by: Alexandre Belloni <a7228e626ecf0022ac91fc1cd8db88e71d0e5e0e@free-electrons.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs