rpm: Enable specific crypto and digest settings via variables
Allow the user to set the specific digest and non-repudiable signature
algorithms. This should be done on a distribution wide basis.
See recipe for exact instructions, but values are now set using:
RPM_FILE_DIGEST_ALGO (default 1 - md5)
RPM_SELF_SIGN_ALGO (default DSA)
Also, change the PACKAGECONFIG to define the default crypto engine for
RPM5. Not just the available crypto engines. If a crypto engine is not
selected, the system will default to the internal beecrypt version.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
