Discard PT_INTERP in embedded linker linker script

Discarding PT_INTERP in the linker script generated for the embedded
linker allows linking without the --no-dynamic-linker argument.

Bug: 216192129
Test: manual
Change-Id: I0e293944c5c804b4512fb834f8f18e1d6ecd053c

cmd/extract_linker/main.go

@@ -114,6 +114,10 @@ func main() {
 
 	fmt.Fprintln(asm, `.section .note.android.embedded_linker,"a",%note`)
 
+	// Discard the PT_INTERP section so that the linker doesn't need to be passed the
+	// --no-dynamic-linker flag.
+	fmt.Println(script, "    /DISCARD/ : { *(.interp) }")
+
 	fmt.Fprintln(script, "}")
 	fmt.Fprintln(script, "INSERT BEFORE .note.android.embedded_linker;")