Fix PPC ELF ABI citation.

There was a typo there. Also the document's title capitalizes "64-Bit"
and "V2" funny.

Change-Id: I38a7f8d575ce2bb48dcc2ce5a4d683a7a170db87
Reviewed-on: https://boringssl-review.googlesource.com/17268
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>

util/fipstools/delocate.go

diff --git a/util/fipstools/delocate.go b/util/fipstools/delocate.go
index a479929..4b3dfe4 100644
--- a/util/fipstools/delocate.go
+++ b/util/fipstools/delocate.go
@@ -339,7 +339,7 @@
 
 /* ppc64le
 
-[PABI]: “64-bit ELF v2 ABI Specification. Power Architechture.” March 21st,
+[PABI]: “64-Bit ELF V2 ABI Specification. Power Architecture.” March 21st,
         2017
 
 (Also useful is “Power ISA Version 2.07 B”. Note that version three of that