fix(partition): add U suffix for unsigned numbers

This corrects MISRA c2012-7.2 violation:
A "u" or "U" suffix shall be applied to all integer constants that are
represented in an unsigned type.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I5508a7d482213fc4d22e3e7ac53defb4135af596
1 file changed