Documentation/process: Make groups alphabetical and use tabs consistently

The list appears to be grouped by type (silicon, software, cloud) and
mostly alphabetical within each group, with a few exceptions.

Before adding to it, cleanup the list to be alphabetical within the
groups, and use tabs consistently throughout the list.

Signed-off-by: Darren Hart <[email protected]>
Link: https://lore.kernel.org/r/ec574b5d55584a3adda9bd31b7695193636ff136.1650995848.git.darren@os.amperecomputing.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: dvhart

Documentation/process/embargoed-hardware-issues.rst

@@ -244,10 +244,10 @@ disclosure of a particular issue, unless requested by a response team or by
 an involved disclosed party. The current ambassadors list:
 
   ============= ========================================================
-  ARM           Grant Likely <[email protected]>
   AMD		Tom Lendacky <[email protected]>
-  IBM Z         Christian Borntraeger <[email protected]>
-  IBM Power     Anton Blanchard <[email protected]>
+  ARM		Grant Likely <[email protected]>
+  IBM Power	Anton Blanchard <[email protected]>
+  IBM Z		Christian Borntraeger <[email protected]>
   Intel		Tony Luck <[email protected]>
   Qualcomm	Trilok Soni <[email protected]>