Add Typeface memory perf test.

This test measures:
- SharedMemory (mmap) byte size of serialized font map.
- Native allocation (malloc) byte size of deserialized font map.

Typeface is updated to avoid OOM during test.

Results on oriole-userdebug:

[1/5] android.graphics.perftests.TypefaceSerializationPerfTest#testSerializeFontMap: PASSED (29.222s)
	testSerializeFontMap_stddev (ns): 74859
	testSerializeFontMap_mean (ns): 1560404
	testSerializeFontMap_median (ns): 1549601
	testSerializeFontMap_percentile90 (ns): 1602499
	testSerializeFontMap_percentile95 (ns): 1624715
[2/5] android.graphics.perftests.TypefaceSerializationPerfTest#testSerializeFontMap_memory: PASSED (13.376s)
	testSerializeFontMap_memory_stddev (ns): 0
	testSerializeFontMap_memory_mean (ns): 931071
	testSerializeFontMap_memory_median (ns): 931071
	testSerializeFontMap_memory_percentile90 (ns): 931071
	testSerializeFontMap_memory_percentile95 (ns): 931071
[3/5] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap: PASSED (32.451s)
	testDeserializeFontMap_stddev (ns): 60524
	testDeserializeFontMap_mean (ns): 232285
	testDeserializeFontMap_median (ns): 228149
	testDeserializeFontMap_percentile90 (ns): 272094
	testDeserializeFontMap_percentile95 (ns): 291708
[4/5] android.graphics.perftests.TypefaceSerializationPerfTest#testDeserializeFontMap_memory: PASSED (29.089s)
	testDeserializeFontMap_memory_stddev (ns): 134
	testDeserializeFontMap_memory_mean (ns): 170209
	testDeserializeFontMap_memory_median (ns): 170208
	testDeserializeFontMap_memory_percentile90 (ns): 170208
	testDeserializeFontMap_memory_percentile95 (ns): 170208
[5/5] android.graphics.perftests.TypefaceSerializationPerfTest#testSetSystemFontMap: PASSED (28.687s)
	testSetSystemFontMap_stddev (ns): 2345934
	testSetSystemFontMap_mean (ns): 649662
	testSetSystemFontMap_median (ns): 396260
	testSetSystemFontMap_percentile90 (ns): 436483
	testSetSystemFontMap_percentile95 (ns): 457479

Bug: 174672300
Fix: 238679890
Test: atest CorePerfTests:android.graphics.perftests.TypefaceSerializationPerfTest
Change-Id: Idb0c2a040d3ca488134f2b91a5bcbbe33a7a59c4