MULE-6829: cxf_operation is wrong when using proxy-client of a soap 1.1 request
Added protocol headers map during inbound cxf processing
(cherry picked from commit 75511963653c1ad71e09fe55e491c1dac46796a8)
(cherry picked from commit 763d5ac996f1dd750a69e9e9b8dc7815c329a25e)