build_system: add module size calculate for xtensa supported [3/3]

PD#SWPL-90928

Problem:
add the xtensa module size calculate function invoke.

Solution:
add the xtensa module size calculate function invoke.

Verify:
N/A

Change-Id: I33cb3633f330cfef1fe82cb05946faedc0368b78
Signed-off-by: xiaohu.huang <xiaohu.huang@amlogic.com>
2 files changed