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driver: respect stack frame limit

Dimitris Lampridis requested to merge hotfix/respect_stack_frame_limit into develop

svec_fpga_app_init() declares too many local buffers that are allocated on the stack.

On some versions of GCC this is detected and reported, causing a warning that is promoted to an error. Example:

svec-core-fpga.c:710:1: error: the frame size of 1968 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

Since apparently it is not a very good idea to increase the stack frame size limit 1, the solution implemented here is to switch to dynimically allocating the biggest buffer (struct resource res[]).

Signed-off-by: Dimitris Lampridis dimitris.lampridis@cern.ch

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