Documentation/staging: Fix typo and incorrect citation in crc32.rst

Documentation/staging: Fix typo and incorrect citation in crc32.rst

In Documentation/staging/crc32.rst, below errors have been corrected:

1. Line 37: from "to being" to "to bring"

2. Line 119:  Incorrect citation date:
   It must be August 1988 instead of August 1998

Signed-off-by: Rakuram Eswaran <rakuram.e96@gmail.com>
Link: https://lore.kernel.org/r/20250820162615.6942-1-rakuram.e96@gmail.com
Signed-off-by: Eric Biggers <ebiggers@kernel.org>