Fix flaky corrupted padding tests

Transfer the fix in http://aosp/1745035 from the KeyMint VTS test back
into the keymaster VTS test.

Bug: 189261752
Test: VtsHalKeymasterV4_0TargetTest
Change-Id: I5f0a69255cfe980dd6e71fa29ff06a84cb668f6d
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index 92aa2ac..53a5490 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -70,7 +70,7 @@
 namespace {
 
 // The maximum number of times we'll attempt to verify that corruption
-// of an ecrypted blob results in an error. Retries are necessary as there
+// of an encrypted blob results in an error. Retries are necessary as there
 // is a small (roughly 1/256) chance that corrupting ciphertext still results
 // in valid PKCS7 padding.
 constexpr size_t kMaxPaddingCorruptionRetries = 8;