Documentation: arm/dt: update spm-v2 doc to remove pmic-dly

PMIC-DLY on SPM V2.2 is part of the PMIC_DATAn command. Remove the
incorrect entity from documentation.

Change-Id: I5c717e8cda339d7d27f690eeed7772094bb394d0
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
1 file changed