[IOT-1330] Fixed build error caused by calling tinydtls build script twice
[IOT-1330] Fixed build error caused by calling tinydtls build script twice

When building android build with SECURED=1 there is no need to call the tinydtls
build script it is build as part of the csdk.

See: resource/csdk/connectivity/src/SConscript line 60

Change-Id: Idf140944f81ca33369a42f2986e526b38882a3f5
Signed-off-by: George Nash <acbdc39d528a4315fe0b532d55c50ae46f5c1667@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12675
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Rick Bell <74cf0087f675c7c2d5c6f65986a0832071d4b512@intel.com>

rzr/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity