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/Kconfig b/arch/arm/Kconfig
index e0488fd..c618aad 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1928,7 +1928,7 @@
 	imply CMD_DM
 
 config ARCH_STI
-	bool "Support STMicrolectronics SoCs"
+	bool "Support STMicroelectronics SoCs"
 	select BLK
 	select CPU_V7A
 	select DM