staging: rtl8192u: Fix sparse warnings of r8182U_core

This patch fixes the following endianness warnings found by sparse running with CF=-D__CHECK_ENDIAN__:

drivers/staging/rtl8192u/r8192U_core.c:1794:10: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1794:10:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1794:10:    got int
drivers/staging/rtl8192u/r8192U_core.c:1794:13: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1794:13:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1794:13:    got int
drivers/staging/rtl8192u/r8192U_core.c:1794:16: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1794:16:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1794:16:    got int
drivers/staging/rtl8192u/r8192U_core.c:1794:19: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1794:19:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1794:19:    got int
drivers/staging/rtl8192u/r8192U_core.c:1795:10: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1795:10:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1795:10:    got int
drivers/staging/rtl8192u/r8192U_core.c:1795:13: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1795:13:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1795:13:    got int
drivers/staging/rtl8192u/r8192U_core.c:1795:16: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1795:16:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1795:16:    got int
drivers/staging/rtl8192u/r8192U_core.c:1795:19: warning: incorrect type in initializer (different base types)
drivers/staging/rtl8192u/r8192U_core.c:1795:19:    expected restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1795:19:    got int
drivers/staging/rtl8192u/r8192U_core.c:1838:34: warning: cast from restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1839:34: warning: cast from restricted __le16
drivers/staging/rtl8192u/r8192U_core.c:1840:34: warning: cast from restricted __le16

Signed-off-by: Koray Gulcu <koray.gulcu@ozu.edu.tr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>