staging: rtl8192e: Rename MCSTxPowerL.., LegacyHTTxPowe.. and AntennaTx..

Rename variable MCSTxPowerLevelOriginalOffset to
mcs_tx_pwr_level_org_offset, LegacyHTTxPowerDiff to legacy_ht_tx_pwr_diff
and AntennaTxPwDiff to antenna_tx_pwr_diff to avoid CamelCase which is not
accepted by checkpatch.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/271b3a9e1c23593e9ead925eb8415a584058fb56.1673290428.git.philipp.g.hortmann@gmail.com


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