cc/lto: add property for not restricting instr limit

There are cases where the 40 instr limit harms performance, thus far
seen with libbinder and app launch times. The minimal increase in memory
usage is a worthy trade off in this case.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>

cc/lto.go

@@ -54,6 +54,8 @@ type LTOProperties struct {
 
 	// Use -fwhole-program-vtables cflag.
 	Whole_program_vtables *bool
+
+	Lto_Instr100 *bool
 }
 
 type lto struct {
@@ -142,7 +144,7 @@ func (lto *lto) flags(ctx ModuleContext, flags Flags) Flags {
 
 		// Reduce the inlining threshold for a better balance of binary size and
 		// performance.
-		if !ctx.Darwin() {
+		if !ctx.Darwin() && !Bool(lto.Properties.Lto_Instr100) {
 			if ctx.isAfdoCompile(ctx) || lto.ThinLTO() {
 				ltoLdFlags = append(ltoLdFlags, "-Wl,-plugin-opt,-import-instr-limit=40")
 			} else {