Update size limit for madvising odex, vdex files

Update the size limit for madvising (MADV_WILLNEED)
odex and vdex files to 100MB.

Art file continues to be madvised fully, with a UINT_MAX limit.

Test: presubmit
Bug: 178853586
Change-Id: Ie46a0658bf30a6a9908ab30b28ce097e434e7e2d
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index 7092031..4f14ddd 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -142,8 +142,10 @@
 
 # Enable Madvising of the whole art, odex and vdex files to MADV_WILLNEED.
 # The size specified here is the size limit of how much of the file
-# (in bytes) is madvised. Setting it to UINT_MAX.
+# (in bytes) is madvised.
+# We madvise the whole .art file to MADV_WILLNEED with UINT_MAX limit.
+# For odex and vdex files, we limit madvising to 100MB.
 PRODUCT_SYSTEM_PROPERTIES += \
-    dalvik.vm.madvise.vdexfile.size=4294967295 \
-    dalvik.vm.madvise.odexfile.size=4294967295 \
+    dalvik.vm.madvise.vdexfile.size=104857600 \
+    dalvik.vm.madvise.odexfile.size=104857600 \
     dalvik.vm.madvise.artfile.size=4294967295