add reference type support by default for darwin to support WASI-SDK-… #8648

Job	Run time
build (-DWAMR_BUILD_AOT=1 -DWAMR_BUILD_INTERP=0)	1m 22s
build (-DWAMR_BUILD_AOT=0)	1m 27s
build (-DWAMR_BUILD_TAIL_CALL=1)	1m 36s
build (-DWAMR_BUILD_CUSTOM_NAME_SECTION=1)	1m 24s
build (-DWAMR_DISABLE_HW_BOUND_CHECK=1)	1m 28s
build (-DWAMR_BUILD_REF_TYPES=1)	1m 46s
build (-DWAMR_BUILD_SIMD=1)	1m 57s
build (-DWAMR_BUILD_DEBUG_INTERP=1)	2m 13s
build (-DWAMR_BUILD_LIB_PTHREAD=1)	1m 28s
build (-DWAMR_BUILD_LIB_WASI_THREADS=1)	1m 45s
build (-DWAMR_BUILD_LIBC_UVWASI=0 -DWAMR_BUILD_LIBC_WASI=1)	1m 23s
test (classic-interp, $DEFAULT_TEST_OPTIONS)	4m 6s
test (classic-interp, $MULTI_MODULES_TEST_OPTIONS)	4m 9s
test (classic-interp, $THREADS_TEST_OPTIONS)	3m 17s
test (classic-interp, $WASI_TEST_OPTIONS)	1m 45s
test (fast-interp, $DEFAULT_TEST_OPTIONS)	3m 52s
test (fast-interp, $MULTI_MODULES_TEST_OPTIONS)	4m 14s
test (fast-interp, $THREADS_TEST_OPTIONS)	3m 28s
test (fast-interp, $WASI_TEST_OPTIONS)	1m 26s
	44m 6s

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