x264: Fail to link gstreamer-full with static configuration

This command line fails due to x264 symbol relocation

$ meson -Ddefault_library=static build

...

/usr/bin/ld: subprojects/x264/libx264.a(cabac-a.o): relocation R_X86_64_PC32 against symbol `x264_cabac_range_lps' can not be used when making a shared object; recompile with -fPIC