6879451 lint warning from sun4v tpm build

[wyllys.ingers...@sun.com]

Author: Wyllys Ingersoll <wyllys.ingersoll at sun.com>
Repository: /hg/onnv/onnv-gate
Latest revision: d4ba6846fc3e15a42ea1d2960cb3a0688f9936cd
Total changesets: 1
Log message:
6879451 lint warning from sun4v tpm build
6879982 tpm frees mutex object twice and can cause panic

Files:
        update: usr/src/uts/common/io/tpm/tpm.c
        update: usr/src/uts/sun4v/tpm/Makefile