MDEV-15672: encryption.innodb_encryption_filekeys - typo in I_S column name: ENCRYPTION_SHCEME

Fixed typo on select that is executed only when something unexpected
happens.

mysql-test/suite/encryption/t/innodb_encryption_filekeys.test

@@ -52,7 +52,7 @@ while ($cnt)
 }
 if (!$success)
 {
-    SELECT NAME,ENCRYPTION_SHCEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
+    SELECT NAME,ENCRYPTION_SCHEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
     SHOW STATUS LIKE 'innodb_encryption%';
     -- die Timeout waiting for encryption threads
 }
@@ -82,7 +82,7 @@ while ($cnt)
 }
 if (!$success)
 {
-    SELECT NAME,ENCRYPTION_SHCEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
+    SELECT NAME,ENCRYPTION_SCHEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
     SHOW STATUS LIKE 'innodb_encryption%';
     -- die Timeout waiting for encryption threads
 }
@@ -111,7 +111,7 @@ while ($cnt)
 }
 if (!$success)
 {
-    SELECT NAME,ENCRYPTION_SHCEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
+    SELECT NAME,ENCRYPTION_SCHEME,MIN_KEY_VERSION, ROTATING_OR_FLUSHING FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION;
     SHOW STATUS LIKE 'innodb_encryption%';
     -- die Timeout waiting for encryption threads
 }