package/flatbuffers: build position independent code
The upcoming tensorflow-lite package requires flatbuffers to be
built with position independent code.
Fixes:
/home/buildroot/buildroot/output/per-package/tensorflow-lite/host/bin/../lib/gcc/aarch64-buildroot-linux-gnu/11.3.0/../../../../aarch64-buildroot-linux-gnu/bin/ld: /home/buildroot/buildroot/output/per-package/tensorflow-lite/host/aarch64-buildroot-linux-gnu/sysroot/usr/lib/libflatbuffers.a(util.cpp.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `_ZN11flatbuffers11CharToUpperEc' which may bind externally can not be used when making a shared object; recompile with -fPIC
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
James Hilliard