ACPI: MRRM: Silence error code static checker warning

The error code is not set correctly on if kasprintf() fails.  On the
first iteration it would return -EINVAL and subsequent iterations
would return success.  Set it to -ENOMEM.

In real life, this allocation will not fail and if it did the system
will not boot so this change is mostly to silence static checker warnings
more than anything else.

Fixes: 04f53540 ("ACPI: MRRM: Add /sys files to describe memory ranges")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aDVTfEm-Jch7FuHG@stanley.mountain


Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>