fix(st): 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: I92b394572528e7179a314bbad4a032fd65053861
2 files changed