Typos fix

Signed-off-by: Bohdan Hunko <Bohdan.Hunko@infineon.com>
Signed-off-by: Chris Brand <chris.brand@cypress.com>
Change-Id: Idb44f4d457efa0b8455173bed23a00a484648dd5
diff --git a/docs/tfm_test_partitions_addition.rst b/docs/tfm_test_partitions_addition.rst
index 6fec8e7..8a06171 100644
--- a/docs/tfm_test_partitions_addition.rst
+++ b/docs/tfm_test_partitions_addition.rst
@@ -22,7 +22,7 @@
 Implementation
 **************
 
-Adding a test partiton to provide test services is same as adding a secure
+Adding a test partition to provide test services is same as adding a secure
 partition, generally the process can be referenced from the document
 `Adding Secure Partition <https://tf-m-user-guide.trustedfirmware.org/integration_guide/services/tfm_secure_partition_addition.html>`_.