pocketpy: Add pic options to cflags

Ensures that PIC is always used to build

Fixes
error: relocation R_386_PC32 cannot be used against symbol 'LZ4_compress_fast_extState'; recompile with -fPIC

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/pocketpy/pocketpy_2.0.4.bb

@@ -20,6 +20,8 @@ S = "${WORKDIR}/git"
 
 inherit cmake
 
+CFLAGS += "-fPIC"
+
 do_install() {
     install -d ${D}${libdir}
     install -m 0644 ${B}/libpocketpy.so ${D}${libdir}/