linux: Support also armeabi-v7a TARGET_ARCH

linux: Support also armeabi-v7a TARGET_ARCH

This EABI is used in Tizen, this way iotivity
 can be rebuild on Tizen using "linux" profile (TARGET_OS).

For instance unsupported older tizen profiles can be rebuilt using gbs
 (ie Tizen:2.3:Wearable).

Change-Id: Ia84cb173add8efbb10cb2a9632a7637cf6202114
Origin: https://gerrit.iotivity.org/gerrit/#/c/12417/
Signed-off-by: Philippe Coval <philippe.coval@osg.samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12417
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/13613