The use of end addresses is preferred over the size for BSS, coherent
memory, and data RAM. As for AARCH64, it will help introducing PIE
support for AARCH32. More explanations in commit:
f1722b69.

Change-Id: I8f1c06580182b10c680310850f72904e58a54d7d
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/tf-a/+/175514


Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
Reviewed-by: Lionel DEBIEVE <lionel.debieve@st.com>