ARM: pxa: ssp: provide platform_device_id for PXA3xx

Provide an explicit match string for PXA3xx SSP ports.

Without this match string, SSP0/SSP1/SSP2 in PXA3xxx will be consided as
PXA27x SSP Port.
Signed-off-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

arch/arm/plat-pxa/ssp.c

@@ -258,6 +258,7 @@ static const struct platform_device_id ssp_id_table[] = {
 	{ "pxa25x-ssp",		PXA25x_SSP },
 	{ "pxa25x-nssp",	PXA25x_NSSP },
 	{ "pxa27x-ssp",		PXA27x_SSP },
+	{ "pxa3xx-ssp",		PXA3xx_SSP },
 	{ "pxa168-ssp",		PXA168_SSP },
 	{ "pxa910-ssp",		PXA910_SSP },
 	{ },