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

Convert kdump documentation to ReST and add it to the
user faced manual, as the documents are mainly focused on
sysadmins that would be enabling kdump.

Note: the vmcoreinfo.rst has one very long title on one of its
sub-sections:

	PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_slab|PG_hwpoision|PG_head_mask|PAGE_BUDDY_MAPCOUNT_VALUE(~PG_buddy)|PAGE_OFFLINE_MAPCOUNT_VALUE(~PG_offline)

I opted to break this one, into two entries with the same content,
in order to make it easier to display after being parsed in html and PDF.

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>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0f220264cc23..249d788f3124 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2010,7 +2010,7 @@ config CRASH_DUMP
 	  kdump/kexec. The crash dump kernel must be compiled to a
 	  memory address not used by the main kernel
 
-	  For more details see Documentation/kdump/kdump.txt
+	  For more details see Documentation/kdump/kdump.rst
 
 config AUTO_ZRELADDR
 	bool "Auto calculation of the decompressed kernel image address"