Fix typo in TEST_MAPPING

Test: atest --test-mapping packages/modules/SdkExtensions
Change-Id: Id54d23802ddce5e62389d5eadd95f6185dbfefa3
diff --git a/gen_sdk/gen_sdk_test.sh b/gen_sdk/gen_sdk_test.sh
index bdf35b7..1d465d9 100644
--- a/gen_sdk/gen_sdk_test.sh
+++ b/gen_sdk/gen_sdk_test.sh
@@ -14,6 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# To access gen_sdk
+PATH=.:$PATH
+
 # Verifies the tool correctly prints the binary representation of a db.
 function test_print_binary() {
   # Golden binary rep generated with: