Fixed missing include.

src/libraries/Native/Unix/System.Globalization.Native/pal_calendarData.c

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 #include "pal_locale_internal.h"

src/libraries/Native/Unix/System.Globalization.Native/pal_casing.c

@@ -3,6 +3,7 @@
 //
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdint.h>
 
 #include "pal_icushim_internal.h"

src/libraries/Native/Unix/System.Globalization.Native/pal_icushim.c

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 //
 
+#include <stdbool.h>
 #include <stdlib.h>
 #include "pal_icushim_internal.h"
 

src/libraries/Native/Unix/System.Globalization.Native/pal_locale.c

@@ -3,6 +3,7 @@
 //
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>

src/libraries/Native/Unix/System.Globalization.Native/pal_localeNumberData.c

@@ -3,6 +3,7 @@
 //
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 

src/libraries/Native/Unix/System.Globalization.Native/pal_localeStringData.c

@@ -3,6 +3,7 @@
 //
 
 #include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 

src/libraries/Native/Unix/System.Globalization.Native/pal_normalization.c

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 //
 
+#include <stdbool.h>
 #include <stdint.h>
 
 #include "pal_icushim_internal.h"

src/libraries/Native/Unix/System.Globalization.Native/pal_timeZoneInfo.c

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 //
 
+#include <stdbool.h>
 #include <stdint.h>
 
 #include "pal_errors_internal.h"