backports: check for define in module_driver and not kernel version

In some places backports checked for the kernel version on weather to
add a own define for module_driver or not. This patch makes it check if
there is already one or not.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
backports: add backport_ prefix in front of BQL functions

Sometimes these functions are backported in the kernel, add the
backports_ prefix to prevent the names from colliding.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
backports: remove duplicate allyesconfig from help

allyesconfig was mentioned in the help dialog twice.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
backports: add backport_ in front of sign_extend32()

sign_extend32() is also backported by the RHEL kernel, this fixes a
compile problem.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
backports: refresh patches on next-20131129

== ckmake-report.log ==

1   2.6.25              [  OK  ]
2   2.6.26              [  OK  ]
3   2.6.27              [  OK  ]
4   2.6.28              [  OK  ]
5   2.6.29              [  OK  ]
6   2.6.30              [  OK  ]
7   2.6.31              [  OK  ]
8   2.6.32              [  OK  ]
9   2.6.33              [  OK  ]
10  2.6.34              [  OK  ]
11  2.6.35              [  OK  ]
12  2.6.36              [  OK  ]
13  2.6.37              [  OK  ]
14  2.6.38              [  OK  ]
15  2.6.39              [  OK  ]
16  3.0.101             [  OK  ]
17  3.1.10              [  OK  ]
18  3.10.20             [  OK  ]
19  3.11.9              [  OK  ]
20  3.12.1              [  OK  ]
21  3.13-rc1            [  OK  ]
22  3.2.52              [  OK  ]
23  3.3.8               [  OK  ]
24  3.4.70              [  OK  ]
25  3.5.7               [  OK  ]
26  3.6.11              [  OK  ]
27  3.7.10              [  OK  ]
28  3.8.13              [  OK  ]
29  3.9.11              [  OK  ]

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>