keymaster: generator: fix update of TEE Internal Core API
With latest version of TEE Internal Core API attr_size should be a size_t type.
Fixes commit 737c592a: update to latest version of TEE Internal Core API
Signed-off-by: Vitor Sato Eschholz vsatoes@baylibre.com
Relates to RITA-1237
Edited by Vitor Sato Eschholz