Add extra (size_t) cast to avoid compiler warning.

FPIIM-1596

Bug: 64575136
Test: builds
Change-Id: I2ca72d89882e9d41803dd80055cbae2f74e73412
Merged-In: Ia33235230b73cb1a828a65dc3a8d1d396fc37d26
(cherry picked from commit 1387a89b143a37b3ab524feaf2af8c2c8d025c3f)
1 file changed