graphics/mesa-devel: unbreak WITH_FORTIFY{,_PORTS} on FreeBSD >= 15

../src/gallium/auxiliary/vl/vl_csc.c:196:35: error: too many arguments provided
to function-like macro invocation
  196 |             { 0.595254, 0.349314, 0.055432, 0.0 },
      |                                   ^
/usr/include/ssp/string.h:124:9: note: macro 'memcpy' defined here
  124 | #define memcpy(dst, src, len) __ssp_bos_check3(memcpy, dst, src, len)
      |         ^
../src/gallium/auxiliary/vl/vl_csc.c:195:10: note: parentheses are required
around macro argument containing braced initializer list
  195 |          memcpy(matrix, &(vl_csc_matrix){
      |          ^
      |                         (
  196 |             { 0.595254, 0.349314, 0.055432, 0.0 },
  197 |             { 0.081244, 0.891503, 0.027253, 0.0 },
  198 |             { 0.015512, 0.081912, 0.902576, 0.0 },