realtek: Fix spaces around braces, ops and keywords

realtek: Fix spaces around braces, ops and keywords

The Linux kernel coding style has strict rules when spaces must be
added around operations or after keywords. The whole list is to
complex to summarize it here but can be found at
https://www.kernel.org/doc/html/v6.17/process/coding-style.html

Signed-off-by: Sven Eckelmann <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20906
Signed-off-by: Hauke Mehrtens <[email protected]>