staging: rtl8192e: avoid CamelCase <dot11RSNAStatsCCMPFormatErrors>

Linux kernel coding-style suggests to not use mixed-case names. Fix
checkpatch issue by changing the variable name from camel case to snake
case.

Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/ebfd9c40400eac872b9af2a5120b0829ff71e077.1680445545.git.kamrankhadijadj@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>