Reland [mlir][Target] Improve ROCDL gpu serialization API (#96198)

Reland: https://github.com/llvm/llvm-project/pull/95456

This patch improves the ROCDL gpu serialization API by:
- Introducing the enum `AMDGCNLibraries` for specifying the AMD GCN
device code libraries to use during linking.
- Removing `getCommonBitcodeLibs` in favor of `AMDGCNLibraries`.
Previously `getCommonBitcodeLibs` would try to load all AMD GCN bitcode
librariesm now it will only load the requested libraries.
- Exposing the `compileToBinary` method and making it virtual, allowing
downstream users to re-use this method.
- Exposing `moduleToObjectImpl`, this method provides a prototype flow
for compiling to binary, allowing downstream users to re-use this
method.
- It also avoids constructing the control variables if no device
libraries are being used.
- Changes the style of the error messages to be composable, ie no full
stops.
- Adds an error message for when the ROCm toolkit can't be found but it
was required.

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