video: fbmem: use swap() to make code cleaner in fb_rotate_logo()
Use swap() in order to make code cleaner. Issue found by coccinelle. Reported-by: NZeal Robot <zealci@zte.com.cn> Signed-off-by: NChangcheng Deng <deng.changcheng@zte.com.cn> Signed-off-by: NHelge Deller <deller@gmx.de>
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