tree a3dbbca76bd0ce4d9d79885aba228ccd7c546348
parent d7dd85fdda15039501c419c0eb6b3fd715c7076f
author Louis Mayencourt <louis.mayencourt@arm.com> 1575890978 +0000
committer Louis Mayencourt <louis.mayencourt@arm.com> 1575900940 +0000

Use the proper size for tb_fw_cfg_dtb

Currently tb_fw_cfg_dtb size is fixed to max, which is generally a page
(but depend on the platform). Instead, read the actual size of the dtb
with the libfdt "fdt_totalsize" function.
This avoid flushing extra memory after updating the dtb with mbedtls
heap information when shared heap is used.

Change-Id: Ibec727661116429f486464a0c9f15e9760d7afe2
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>