staging: rtl8723bs: clean up variable initializations

staging: rtl8723bs: clean up variable initializations

After previous cleanup patches the variable initializations in
hal_EfuseSwitchToBank are messed up a little, but were left as-is to make
reviewing easier. For example bRet is initialized to false and immediately
set to true. This patch cleans up the variable initializations.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20250823124321.485910-13-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>