stm32mp1: fix reference for STMicroelectronics

Replace reference to the correct name STMicroelectronics

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/arch/arm/cpu/armv7/stv0991/lowlevel.S b/arch/arm/cpu/armv7/stv0991/lowlevel.S
index 218ac70..5733eaa1 100644
--- a/arch/arm/cpu/armv7/stv0991/lowlevel.S
+++ b/arch/arm/cpu/armv7/stv0991/lowlevel.S
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * (C) Copyright 2014 stmicroelectronics
+ * (C) Copyright 2014 STMicroelectronics
  */
 
 #include <config.h>