i965: use rzalloc instead of calloc in brwNewProgram
i965: use rzalloc instead of calloc in brwNewProgram

commit cc6aa1d161280f10ded7834d1ec2413bc97589fe changed to using rzalloc
for gl_program creation but one instance for program creation was still
using calloc.

Signed-off-by: Tapani Pälli <cdcb67a5e49297de94340ca09f25994bd5e7f762@intel.com>
Reviewed-by: Juan A. Suarez <af79b5692270b306571bb1d8bbe0285ae3ac93d9@igalia.com>
Reviewed-by: Iago Toral Quiroga <a847aabaac44184372f6b1cd1a59aa254daaeb0b@igalia.com>
Reviewed-by: Timothy Arceri <5dd83789ef3714029244367ba1ca09f1d7627408@collabora.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler