bl32: add an assert on BL32_SIZE in sp_min.ld.S
bl32: add an assert on BL32_SIZE in sp_min.ld.S

This assert is present in all other linker scripts. This checks the
size of BL32 doesn't exceed its defined limit.

Change-Id: I0005959b5591d3eebd870045adafe437108bc9e1
Signed-off-by: Yann Gautier <e753f6969c288905606e3c07464886d4f1fc1be0@st.com>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware