staging: rtl8723bs: core: Remove unnecessary space after a cast

Remove useless space after cast

Signed-off-by: Kushal Kothari <kushalkothari285@gmail.com>
Link: https://lore.kernel.org/r/baa1703e0c202dfb90e215b63b535161bd3ccccb.1634967010.git.kushalkothari285@gmail.com


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