benchmarks/vkoverhead: mark BROKEN on armv7

../src/vkoverhead.c:859:18: error: incompatible pointer to integer conversion initializing 'VkPipeline' (aka 'unsigned long long') with an expression of type 'void *' [-Werror,-Wint-conversion]

VkPipeline pipeline = he->data;
           ^          ~~~~~~~~

../src/vkoverhead.c:3084:63: error: incompatible integer to pointer conversion passing 'VkPipeline' (aka 'unsigned long long') to parameter of type 'void *' [-Werror,-Wint-conversion]

_mesa_hash_table_insert(&gpl_pipeline_table, key, pipeline_gpl_vert_final[i]);
                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~

../util/hash_table.h:92:71: note: passing argument to parameter 'data' here
_mesa_hash_table_insert(struct hash_table *ht, const void *key, void *data);

^

Reported by: pkg-fallout