test: typo decompression

%s/decopmression/decompression/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/compression.c b/test/compression.c
index cf040d7..63f929f 100644
--- a/test/compression.c
+++ b/test/compression.c
@@ -451,7 +451,7 @@
 }
 
 /**
- * run_bootm_test() - Run tests on the bootm decopmression function
+ * run_bootm_test() - Run tests on the bootm decompression function
  *
  * @comp_type:	Compression type to test
  * @compress:	Our function to compress data