kprobes: Ensure blacklist data is aligned
kprobes: Ensure blacklist data is aligned

ARC Linux (not supporting native unaligned access) was failing
to boot because __start_kprobe_blacklist was not aligned.

This was because per generated vmlinux.lds it was emitted right
next to .rodata with strings etc hence could be randomly
unaligned.

Fix that by ensuring a word alignment. While 4 would suffice for
32bit arches and problem at hand, it is probably better to put 8.

| Path: (null) CPU: 0 PID: 1 Comm: swapper Not tainted
| 3.15.0-rc3-next-20140430 #2
| task: 8f044000 ti: 8f01e000 task.ti: 8f01e000
|
| [ECR   ]: 0x00230400 => Misaligned r/w from 0x800fb0d3
| [EFA   ]: 0x800fb0d3
| [BLINK ]: do_one_initcall+0x86/0x1bc
| [ERET  ]: init_kprobes+0x52/0x120

Signed-off-by: Vineet Gupta <af669d95a4c0de051445d4cafdbb2c5c4a2838be@synopsys.com>
Cc: <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>
Cc: <df9728c9e5104131c08c7adb03af425394842596@rustcorp.com.au>
Cc: <6f29df8e90a57f1ba61ffd63b0468c86bb6d3a99@infradead.org>
Cc: <b3f594e10a9edcf5413cf1190121d45078c62290@goop.org>
Cc: <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Cc: <36ded0fe241474e14ca49d9021f8ba3a70d78d60@gmx.de>
Cc: <bea8411e219c0dd38de877adce314d4238e2ddc2@chrisli.org>
Cc: <9788063cfe1a246c69b3446f8cc198bd2d8966a2@intel.com>
Cc: <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>
Cc: <7dc108d19a2513f6455353af182b9e4d3b794ec9@in.ibm.com>
Cc: <60fcdccfd958d359debfe6e6e7417cd7f1aaa9e3@hitachi.com>
Cc: <e829bd48de90b6e1a1950750fa8ca2bb62f273d4@sous-sol.org>
Cc: <cc926cf5b90d92ca08b99da90949c190e7ec8fa9@vmware.com>
Cc: anton Kolesov <6d46fa21eecc5e9fc7d28ab2b113a82bcda0d8ca@synopsys.com>
Link: 97c5372260cae4f30441785e5161f6607a9289c7@synopsys.com
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs