init: Add support for GSI installations in first-stage mount.

Bug: 121209697
Test: gsi boots
Change-Id: I69db0f8e999da366e46728b1008602f543cd79f6
diff --git a/init/Android.bp b/init/Android.bp
index c920dc2..3369fb9 100644
--- a/init/Android.bp
+++ b/init/Android.bp
@@ -77,6 +77,7 @@
         "libext4_utils",
         "libfs_mgr",
         "libfscrypt",
+        "libgsi",
         "libhidl-gen-utils",
         "libkeyutils",
         "liblog",