sandbox: i2c: Rename driver names to work with of-platdata

Some of these do not follow the rules. Make sure the driver name matches
the compatible string in all cases.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index f15d1eb..899e75f 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -604,10 +604,10 @@
 				sandbox,size = <256>;
 			};
 			emul0: emul0 {
-				compatible = "sandbox,i2c-rtc";
+				compatible = "sandbox,i2c-rtc-emul";
 			};
 			emul1: emull {
-				compatible = "sandbox,i2c-rtc";
+				compatible = "sandbox,i2c-rtc-emul";
 			};
 		};