MAINTAINERS: Update STi and STM32 maintainers emails in remaining files

A previous series already update STMicroelectronics emails maintainers
but some files have been omitted (Makefile, .dts, .dtsi and .rst files).
Update Patrick and my email address with the one dedicated to upstream
activities.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/doc/driver-model/bind.rst b/doc/driver-model/bind.rst
index e3e9cb4..b19661b 100644
--- a/doc/driver-model/bind.rst
+++ b/doc/driver-model/bind.rst
@@ -1,5 +1,5 @@
 .. SPDX-License-Identifier: GPL-2.0+
-.. sectionauthor:: Patrice Chotard <patrice.chotard@st.com>
+.. sectionauthor:: Patrice Chotard <patrice.chotard@foss.st.com>
 
 Binding/unbinding a driver
 ==========================