[U-Boot] [PATCH v2] Fix wrong loop bound in flush_cache() when "size" is zero

[Mike Frysinger]

in the future, please prefix your patches.  since this is
mips-specific, your summary would read:
mips: fix wrong loop bound in flush_cache() when "size" is zero

or perhaps:
mips32: fix wrong loop bound in flush_cache() when "size" is zero
-mike