Fix rild running in Nakasi.

The module rild is telephony specific, since Nakasi has no radio
it shouldn't run rild. Changing the build system so rild is optional
for products that don't have telephony support.

Since rild is now optional, it is necessary to add it explicitly to
the sdk build as the sdk build is special.

Bug: 6463864
Change-Id: If944e051023b567807585fb91163a1e3f79c1024

core/user_tags.mk

@@ -443,7 +443,6 @@ GRANDFATHERED_USER_MODULES += \
 	resize2fs \
 	resize2fs_host \
 	rgb2565 \
-	rild \
 	rsg-generator \
 	run-as \
 	runtime \

target/product/sdk.mk

@@ -62,7 +62,8 @@ PRODUCT_PACKAGES := \
 	CalendarProvider \
 	Calendar \
 	SmokeTest \
-	SmokeTestApp
+	SmokeTestApp \
+	rild
 
 
 # Define the host tools and libs that are parts of the SDK.

target/product/telephony.mk

@@ -18,6 +18,7 @@
 # to products that have telephony hardware.
 
 PRODUCT_PACKAGES := \
-    Mms
+    Mms \
+    rild
 
 PRODUCT_COPY_FILES := \