Add an empty 1.1 ISap interface.

This is needed since manifest doesn't support different versions
for different interfaces in a package. Since there's a 1.1 for
IRadio, there needs to be a 1.1 for ISap as well.

Test: build
Bug: 63598469
Change-Id: I9a0bd898e5d236f05d6574b3e3093521d0f57d52
diff --git a/current.txt b/current.txt
index 59064c4..60dd2c1 100644
--- a/current.txt
+++ b/current.txt
@@ -203,6 +203,7 @@
 f79edf50a378a9c9bb737f93f205dab91b4c63ea49723afc6f856c138203ea81 android.hardware.radio@1.1::IRadio
 fcc5c8c88b85a9f63fba67d9e674da466c72a98ca287f343fb5721d098713f86 android.hardware.radio@1.1::IRadioIndication
 50f27e8c7ec009d5d4418b2ce8392b940bbf052ecc1d7251285f332485a5ba4e android.hardware.radio@1.1::IRadioResponse
+be981148c95c0089f3ae92854f0e7ae999d308e927db3e065f12a4fabe07852f android.hardware.radio@1.1::ISap
 d8d6bf7b4d36c04ce587df75953c3f723cfbe71c896c1aa8ab6478eae126723d android.hardware.radio@1.1::types
 d8aae01606bfd34bf2fb9a59cadc016f46f318e56cddb8f15a945c5b3c1222bc android.hardware.tetheroffload.config@1.0::IOffloadConfig
 447b00306bc95a7aafec1d660f6f3e9f76ac8bc0353193435e5579ab833da619 android.hardware.tetheroffload.control@1.0::IOffloadControl