We are using generic implementation of ffs. This should
be part of Simon's commit 0413cfec



Here is warning message which this patch removes.

In file included from /tmp/u-boot-microblaze/include/common.h:38,
                 from cmd_mtdparts.c:87:
/tmp/u-boot-microblaze/include/linux/bitops.h:123:1: warning: "ffs" redefined
In file included from /tmp/u-boot-microblaze/include/linux/bitops.h:110,
                 from /tmp/u-boot-microblaze/include/common.h:38,
                 from cmd_mtdparts.c:87:
/tmp/u-boot-microblaze/include/asm/bitops.h:269:1:
warning: this is the location of the previous definition

Signed-off-by: Michal Simek <monstr@monstr.eu>