GCC4.6: Squash error in pcmcia/i82365.c

i82365.c: In function 'cirrus_set_opts':
i82365.c:329: error: 'buf' undeclared (first use in this function)
i82365.c:329: error: (Each undeclared identifier is reported only once
i82365.c:329: 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>