Address API council feedback for setDiscoveryTechnology flags

Bug: 319406723
Bug: 300351519
Test: cts
Change-Id: I1493624bcae2dbd0723fc50214ff22360135bc16
(cherry picked from commit 21261d25347f8089d520ff98a3d2621d140ef998)
diff --git a/nfc/api/current.txt b/nfc/api/current.txt
index 1046d8e9..85d5b98 100644
--- a/nfc/api/current.txt
+++ b/nfc/api/current.txt
@@ -99,12 +99,12 @@
     field public static final String EXTRA_SECURE_ELEMENT_NAME = "android.nfc.extra.SECURE_ELEMENT_NAME";
     field public static final String EXTRA_TAG = "android.nfc.extra.TAG";
     field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_DISABLE = 0; // 0x0
-    field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_KEEP = -1; // 0xffffffff
+    field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_KEEP = -2147483648; // 0x80000000
     field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_NFC_PASSIVE_A = 1; // 0x1
     field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_NFC_PASSIVE_B = 2; // 0x2
     field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_LISTEN_NFC_PASSIVE_F = 4; // 0x4
     field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_READER_DISABLE = 0; // 0x0
-    field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_READER_KEEP = -1; // 0xffffffff
+    field @FlaggedApi("android.nfc.enable_nfc_set_discovery_tech") public static final int FLAG_READER_KEEP = -2147483648; // 0x80000000
     field public static final int FLAG_READER_NFC_A = 1; // 0x1
     field public static final int FLAG_READER_NFC_B = 2; // 0x2
     field public static final int FLAG_READER_NFC_BARCODE = 16; // 0x10