package/tpm2-tss: fix build on host without groupadd
Override check for groupadd as already done for setfacl since commit
d9123dd79956124ab1b39427764882b61fe44261 to avoid the following build
failure:
checking for groupadd... no
configure: error: Missing required program 'groupadd': ensure it is installed and on PATH.
Fixes:
- http://autobuild.buildroot.org/results/5accac06abbd3980484d8e2667a5446ec5d85bc1
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>