make_zephyr_sdk.sh: Bump version to 0.9
make_zephyr_sdk.sh: Bump version to 0.9

Remove creation of legacy symlinks as well, not needed nor
required anymore.

Change-Id: Icd112554799df88a4cd829ee32eba397fcf6394f
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