template_dir: Avoid using relative symlinks
template_dir: Avoid using relative symlinks

Relative symlinks are not guaranteed to be supported on older
legacy systems such as Ubuntu 12.

ZEP-429

Change-Id: Ie723f0cf428e13084eaa1dcefac5d14720613116
Signed-off-by: Juro Bystricky <632519cd04f15aec8742590453c2132c1299a8ac@intel.com>

zephyrproject-rtos/meta-zephyr-sdk,zephyrproject-rtos/meta-zephyr-sdk,zephyrproject-rtos/meta-zephyr-sdk,zephyrproject-rtos/meta-zephyr-sdk