Remove .(ll)ndk suffix from (ll)ndk_library

Soong handles these automatically now.

Bug: 33241851
Test: Android-aosp_arm.mk is the same before/after
Test: build.ninja is the same before/after
Test: build-aosp_arm.ninja is the same before/after
Merged-In: Ibfe4cf5db732d9007b1cc12dbc523c427de1b23d
Change-Id: Ibfe4cf5db732d9007b1cc12dbc523c427de1b23d
diff --git a/libm/Android.bp b/libm/Android.bp
index 24e641c..07d4261 100644
--- a/libm/Android.bp
+++ b/libm/Android.bp
@@ -534,12 +534,12 @@
 }
 
 ndk_library {
-    name: "libm.ndk",
+    name: "libm",
     symbol_file: "libm.map.txt",
     first_version: "9",
 }
 
 llndk_library {
-    name: "libm.llndk",
+    name: "libm",
     symbol_file: "libm.map.txt",
 }