Use params to build_compilation_database.sh

[justsmth]

Description of changes:

Propogates script parameters to cmake command

Testing:

❯ ./util/build_compilation_database.sh -DFIPS=1 -DBUILD_SHARED_LIBS=1
...
+ mkdir -p /var/folders/bd/5rrlftjx2098f44h7jbj3n400000gr/T/tmp.69gTlsxzTf/AWS-LC-BUILD
+ cmake /Users/justsmth/repos/aws-lc -B /var/folders/bd/5rrlftjx2098f44h7jbj3n400000gr/T/tmp.69gTlsxzTf/AWS-LC-BUILD -GNinja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DFIPS=1 -DBUILD_SHARED_LIBS=1
...
...


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