Based on debian patch. LDFLAGS were not being passed, which caused relro
to not be applies.
Also made stock CFLAGS optional. -fkeep-inline was keeping sizes high.
Removed PKG_NO_MIPS16 as the original problem seems to be gone.
Size from 54338 to 50761
Signed-off-by: Rosen Penev <rosenp@gmail.com>