pd67290.c: In function 'cirrus_set_opts':
pd67290.c:282: error: 'buf' undeclared (first use in this function)
pd67290.c:282: error: (Each undeclared identifier is reported only once
pd67290.c:282: error: for each function it appears in.)

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>