src/manifest: rename manifest_consume_string() to key_file_consume_string()
src/manifest: rename manifest_consume_string() to key_file_consume_string()

This is a preparation for using this function for more srict parsing of
config files, too.

Signed-off-by: Enrico Joerns <a2e5f936c390f36494e46e71bcfbe365bb1e8c49@pengutronix.de>

jluebbe/rauc,jluebbe/rauc,ejoerns/rauc,rauc/rauc,rauc/rauc,ejoerns/rauc,rauc/rauc,ejoerns/rauc,jluebbe/rauc