build: Do not define -DPIC longer through build system
build: Do not define -DPIC longer through build system

Now all code relies upon __PIC__ flag defined by compiler, so
it does not need to explicitly define the PIC macro through build system

Signed-off-by: Carmelo Amoroso <532378793705a04edd56deb76ad8c0442834d55d@st.com>

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc