bc is currently used in iSCSI qos.sh test, but is not listed
as a pre-requisite in vm_setup.sh
Also it's a good alternative to using sed or awk for some
simple math operations.
Change-Id: I18742c0dedcdcc5eeebd310eb5760e226a163af7
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453998
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>