r8190p: Fix misuse of & instead of &&

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
r8190p: Replace "switch(" with "switch ("

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
r8190p: Replace "do{" with "do {"

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
r8190p: Fix spacing around "while"

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
r8190p: Add appropriate spacings around comma, equals, etc.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>