USB: serial: safe_serial: move __inline__ before return type

Make the code like the rest of the kernel.
Also use inline instead of __inline__.

Link: http://lkml.kernel.org/r/a5072b74b6c293e6ec93c4900482e9d3267f15b2.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/usb/serial/safe_serial.c

@@ -180,7 +180,7 @@ static const __u16 crc10_table[256] = {
  * Perform a memcpy and calculate fcs using ppp 10bit CRC algorithm. Return
  * new 10 bit FCS.
  */
-static __u16 __inline__ fcs_compute10(unsigned char *sp, int len, __u16 fcs)
+static inline __u16 fcs_compute10(unsigned char *sp, int len, __u16 fcs)
 {
 	for (; len-- > 0; fcs = CRC10_FCS(fcs, *sp++));
 	return fcs;