fix(tree): correct some typos

found using codespell (https://github.com/codespell-project/codespell).

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I1bfa797e3460adddeefa916bb68e22beddaf6373
diff --git a/plat/nxp/soc-ls1088a/include/soc.h b/plat/nxp/soc-ls1088a/include/soc.h
index eb36c2e..793feee 100644
--- a/plat/nxp/soc-ls1088a/include/soc.h
+++ b/plat/nxp/soc-ls1088a/include/soc.h
@@ -112,7 +112,7 @@
 #define IPSTPCR1_VALUE			0x000003FF
 #define IPSTPCR2_VALUE			0x00013006
 
-/* Dont' stop UART */
+/* Don't stop UART */
 #define IPSTPCR3_VALUE			0x0000033A
 
 #define IPSTPCR4_VALUE			0x00103300