[tests] Renames the macro VALUECONFIG into EVA_CONFIG.

src/plugins/value/gen_test_config.sh

tests/builtins/from_result.c

tests/builtins/malloc-deps.i

tests/builtins/malloc-size-zero.c

tests/builtins/malloc.c

tests/builtins/malloc_bug_tr.c

tests/builtins/malloc_memexec.c

tests/builtins/malloc_multiple.c

tests/builtins/memcpy_invalid.c

tests/builtins/test_config

tests/builtins/test_config_apron

tests/builtins/test_config_bitwise

tests/builtins/test_config_equalities

tests/builtins/test_config_gauges

tests/builtins/test_config_symblocs

tests/builtins/write-const.c

tests/float/absorb.c

tests/float/alarms.i

tests/float/builtins.c

tests/float/cond.c