script/build_bmcov: Update cmsis path

SCP-firmware has moved the cmsis dependency within the contrib
folder.
This patch reflects the same change for bmcov.

Change-Id: I78217a18b277d0da1dcb9a0c1685a19f6c9b5aef
Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
diff --git a/script/build_bmcov.sh b/script/build_bmcov.sh
index 8e24f5e..7fb48dc 100755
--- a/script/build_bmcov.sh
+++ b/script/build_bmcov.sh
@@ -47,7 +47,7 @@
                     "URL":  "$CC_CMSIS_URL",
                     "COMMIT": "$CC_CMSIS_COMMIT",
                     "REFSPEC": "$CC_CMSIS_REFSPEC",
-                    "LOCATION": "scp/cmsis"
+                    "LOCATION": "scp/contrib/cmsis/git"
                     }
                 ]
 EOM