Staging: rtl8192u: r8192U_core.c Fixed open brace { placement

Fixed open brace placement to address the following code-style errors:

ERROR: that open brace { should be on the previous line

Signed-off-by: Chaitanya Hazarey <c@24.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>