add pin groups for USP0 only holding one of TX and RX frame sync. this patch
matches with the change in drivers/pinctrl/sirf.
commit 
73f68c01f46 did this for prima2, but missed prima2. this patch fixes
the problem.
Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
                                                 sirf,function = "usp0_uart_nostreamctrl";
                                         };
                                 };
+                               usp0_only_utfs_pins_a: usp0@2 {
+                                       usp0 {
+                                               sirf,pins = "usp0_only_utfs_grp";
+                                               sirf,function = "usp0_only_utfs";
+                                       };
+                               };
+                               usp0_only_urfs_pins_a: usp0@3 {
+                                       usp0 {
+                                               sirf,pins = "usp0_only_urfs_grp";
+                                               sirf,function = "usp0_only_urfs";
+                                       };
+                               };
                                 usp1_pins_a: usp1@0 {
                                         usp1 {
                                                 sirf,pins = "usp1grp";