tpm-tools: inherit perlnative.bbclass
tpm-tools: inherit perlnative.bbclass

tpm-tools calls pod2man to produce manual files. But pod2man has been
removed from hosttools in oe-core. So it fails occasionally when in some
certain condition .pod file is newer than corresponding man page files
that man files need to be reproduced:

| make[3]: Entering directory 'TOPDIR/tmp-glibc/work/ppc7400-wrs-linux/tpm-tools/1.3.9.1+gitAUTOINC+bdf9f1bc8f-r0/git/man/man8'
| /bin/bash: pod2man: command not found
| make[3]: *** [Makefile:575: tpm_nvwrite.8] Error 127

Inherit perlnative to fix such issue.

Signed-off-by: Kai Kang <12cd79c4a5e843cb1f0f6ae2d45a5336990c82a6@windriver.com>

jiazhang0/meta-secure-core,jiazhang0/meta-secure-core,jiazhang0/meta-secure-core,jiazhang0/meta-secure-core