disp: rotator: update mapped buffer size retrieval from sg_table
This change corrects the logic of accumulated size
of mapped entries of sg table for DMA BUFFER.
Change-Id: I2baef8d438cab8314c5526aac2ea8a3227176888
Signed-off-by: Gaurav LNU <[email protected]>
Signed-off-by: Vinod Polimera <[email protected]>