InputMapper refactor: Modify InputMapper constructor for configuration

We are refactoring Input-mapper(s) to ensure they are configured at the
time of initialisation.

In this CL we are changing InputMapper's constructor to accept the
reader configuration to facilitate initialisation.

Test: build, inputflinger_tests, presubmit checks
Bug: 256009910
Change-Id: I710b892f51268a001d076f387163ac3274f5b0d1
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index 3eac10d..7f926a7 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -26,7 +26,8 @@
 
 class ExternalStylusInputMapper : public InputMapper {
 public:
-    explicit ExternalStylusInputMapper(InputDeviceContext& deviceContext);
+    explicit ExternalStylusInputMapper(InputDeviceContext& deviceContext,
+                                       const InputReaderConfiguration& readerConfig);
     virtual ~ExternalStylusInputMapper() = default;
 
     uint32_t getSources() const override;