ANDROID: lowmemorykiller: fix declaration order warnings

drivers/staging/android/lowmemorykiller.c: In function ‘lowmem_scan’:
drivers/staging/android/lowmemorykiller.c:174:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]

Change-Id: I7164a1316ed379c9c887f82cd16e7bb91e9dfcd6
Signed-off-by: Brian Norris <briannorris@google.com>
Git-Commit: 5fb1ae07029fdaf8b9ea00f07344d1e8f7d419af
Git-Repo: https://android.googlesource.com/kernel/common


Signed-off-by: Patrick Daly <pdaly@codeaurora.org>