Build: Add mbedtls patch to help code sharing

Adds a patch file that, when applied to mbedtls, will remove the
'static' keyword from some function pointers related to memory
allocation. This allows more functions to be shared between MCUboot
and the secure firmware.

Signed-off-by: Balint Matyi <Balint.Matyi@arm.com>
Change-Id: Ibc6cbb3ab18fccc92a5b8608b9f1ef54c1136d2f
2 files changed