docs: arm: convert docs to ReST and rename to *.rst

Converts ARM the text files to ReST, preparing them to be an
architecture book.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
diff --git a/Documentation/arm/stm32/overview.rst b/Documentation/arm/stm32/overview.rst
index f7e7341..85cfc84 100644
--- a/Documentation/arm/stm32/overview.rst
+++ b/Documentation/arm/stm32/overview.rst
@@ -1,5 +1,3 @@
-:orphan:
-
 ========================
 STM32 ARM Linux Overview
 ========================
diff --git a/Documentation/arm/stm32/stm32f429-overview.rst b/Documentation/arm/stm32/stm32f429-overview.rst
index 65bbb1c..a7ebe8e 100644
--- a/Documentation/arm/stm32/stm32f429-overview.rst
+++ b/Documentation/arm/stm32/stm32f429-overview.rst
@@ -1,5 +1,4 @@
-:orphan:
-
+==================
 STM32F429 Overview
 ==================
 
@@ -23,6 +22,4 @@
 
 .. _STM32F429: http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1577/LN1806?ecmp=stm32f429-439_pron_pr-ces2014_nov2013
 
-:Authors:
-
-Maxime Coquelin <mcoquelin.stm32@gmail.com>
+:Authors: Maxime Coquelin <mcoquelin.stm32@gmail.com>
diff --git a/Documentation/arm/stm32/stm32f746-overview.rst b/Documentation/arm/stm32/stm32f746-overview.rst
index 42d5930..78befdd 100644
--- a/Documentation/arm/stm32/stm32f746-overview.rst
+++ b/Documentation/arm/stm32/stm32f746-overview.rst
@@ -1,5 +1,4 @@
-:orphan:
-
+==================
 STM32F746 Overview
 ==================
 
@@ -30,6 +29,4 @@
 
 .. _STM32F746: http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32f7-series/stm32f7x6/stm32f746ng.html
 
-:Authors:
-
-Alexandre Torgue <alexandre.torgue@st.com>
+:Authors: Alexandre Torgue <alexandre.torgue@st.com>
diff --git a/Documentation/arm/stm32/stm32f769-overview.rst b/Documentation/arm/stm32/stm32f769-overview.rst
index f6adac8..e482980 100644
--- a/Documentation/arm/stm32/stm32f769-overview.rst
+++ b/Documentation/arm/stm32/stm32f769-overview.rst
@@ -1,5 +1,4 @@
-:orphan:
-
+==================
 STM32F769 Overview
 ==================
 
@@ -32,6 +31,4 @@
 
 .. _STM32F769: http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32-high-performance-mcus/stm32f7-series/stm32f7x9/stm32f769ni.html
 
-:Authors:
-
-Alexandre Torgue <alexandre.torgue@st.com>
+:Authors: Alexandre Torgue <alexandre.torgue@st.com>
diff --git a/Documentation/arm/stm32/stm32h743-overview.rst b/Documentation/arm/stm32/stm32h743-overview.rst
index c525835..4e15f1a 100644
--- a/Documentation/arm/stm32/stm32h743-overview.rst
+++ b/Documentation/arm/stm32/stm32h743-overview.rst
@@ -1,5 +1,4 @@
-:orphan:
-
+==================
 STM32H743 Overview
 ==================
 
@@ -31,6 +30,4 @@
 
 .. _STM32H743: http://www.st.com/en/microcontrollers/stm32h7x3.html?querycriteria=productId=LN2033
 
-:Authors:
-
-Alexandre Torgue <alexandre.torgue@st.com>
+:Authors: Alexandre Torgue <alexandre.torgue@st.com>
diff --git a/Documentation/arm/stm32/stm32mp157-overview.rst b/Documentation/arm/stm32/stm32mp157-overview.rst
index 2c52cd0..f62fdc8 100644
--- a/Documentation/arm/stm32/stm32mp157-overview.rst
+++ b/Documentation/arm/stm32/stm32mp157-overview.rst
@@ -1,5 +1,4 @@
-:orphan:
-
+===================
 STM32MP157 Overview
 ===================