feat(mbedtls): update minimum version to latest MbedTLS v3.6.2

Use the latest MbedTLS version 3.6.2 as the minimum to stay in 
sync with TF-A.

Change-Id: I4c70ec87805a99ba0cfaf2c23cfea51133d0daf7
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
1 file changed