Resolve escaping error in genrules sources with $

'$' cannot be included in the genrule source file name as it is an
invalid character.
One workaround to include a file with '$' in the filename is to use
glob(*) and match pattern.
However, shell currently evaluates the '$' sign and leads to unexpected behavior.
This change fixes the issue by shell-escaping the filepath in generating
build actions.

Test: m
Bug: b/194980152
Change-Id: I6fd919c568b5b6526e4de5155104a08ecadab307