This allows to use a commit sha1 for CONFIG_INTERPRETERS_WAMR_VERSION.
Note: the existing configs with specific wamr version
need to be updated.
Tested with:
CONFIG_INTERPRETERS_WAMR_VERSION=main
CONFIG_INTERPRETERS_WAMR_VERSION=WAMR-04-15-2021
CONFIG_INTERPRETERS_WAMR_VERSION=3168ba8dcf20d9d8539d75c637420f5fd8682335
wget is missing from some system (like macOS and Windows native),
it's better to use curl to simplify build environment.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
