* Update build_all.sh
The path, $ANDROID_BUILD_TOP and/or $ANDROID_PRODUCT_OUT, can contain spaces, which results in error. As long as shell var is not number, it is safe to enclose it with ""
* Enclose full shell word in quotes
This is just a stylistic choice: I find it easier to parse a command line if the full shell word is in quotes.
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Co-authored-by: Martin Geisler <martin@geisler.net>