vchiq: fix build with clang 21HEADmain

When compiling vchiq with clang 21, the following -Werror warning is
produced:

    sys/contrib/vchiq/interface/vchiq_arm/vchiq_arm.c:728:27: error: default initialization of an object of type 'VCHIQ_QUEUE_MESSAGE32_T' with const member leaves the object uninitialized [-Werror,-Wdefault-const-init-field-unsafe]
      728 |                 VCHIQ_QUEUE_MESSAGE32_T args32;
          |                                         ^
    sys/contrib/vchiq/interface/vchiq_arm/vchiq_ioctl.h:151:40: note: member 'elements' declared 'const' here
      151 |         const /*VCHIQ_ELEMENT_T * */ uint32_t elements;
          |                                               ^

While the warning is formally correct, the 'args32' object is
immediately initialized after its declaration. Therefore, suppress the
warning.

MFC after:	3 days

0 files changed, 0 insertions, 0 deletions