llvm: move BugpointPasses.so and LLVMHello.so to separate packages

* keep them RRECOMMENDed from -dev
* fixes following QA error:
  NOTE: recipe llvm3.3-3.3-r0: task do_package_qa: Started
  ERROR: QA Issue:
    -dev package contains non-symlink .so: llvm3.3-dev path 'llvm3.3/3.3-r0/packages-split/llvm3.3-dev/usr/lib/llvm3.3/LLVMHello.so'
    -dev package contains non-symlink .so: llvm3.3-dev path 'llvm3.3/3.3-r0/packages-split/llvm3.3-dev/usr/lib/llvm3.3/BugpointPasses.so' [dev-elf]

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>