chore(TC-LCFG-2.1):modifications for PICS step 1a,3

In step 1a and 3 supportedLocales attribute PICS has to be updated
LCFG.S.A0001 instead LCFG.S.A0000 as per test plan issue project-chip#129

Author: gvargas-csa

src/app/tests/suites/certification/Test_TC_LCFG_2_1.yaml

@@ -48,7 +48,7 @@ tests:
                 value: nodeId
 
     - label: "Step 1a: TH reads SupportedLocales attribute from DUT"
-      PICS: LCFG.S.A0000
+      PICS: LCFG.S.A0001
       command: "readAttribute"
       attribute: "SupportedLocales"
       response:
@@ -81,7 +81,7 @@ tests:
           error: UNSUPPORTED_WRITE
 
     - label: "Step 3: TH reads SupportedLocales attribute from DUT"
-      PICS: LCFG.S.A0000
+      PICS: LCFG.S.A0001
       command: "readAttribute"
       attribute: "SupportedLocales"
       response: