Update to v5.12 kernel headers.
Kernel headers coming from:
Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.12
Test: Boots flame device and runs bionic unit tests.
Test: Boots acloud device and runs bionic unit tests.
Change-Id: I8ac107ce9d4978be3ef9517b90ad6ecafd06785a
diff --git a/libc/kernel/uapi/linux/rtc.h b/libc/kernel/uapi/linux/rtc.h
index 8e70eba..7f38483 100644
--- a/libc/kernel/uapi/linux/rtc.h
+++ b/libc/kernel/uapi/linux/rtc.h
@@ -76,5 +76,9 @@
#define RTC_PF 0x40
#define RTC_AF 0x20
#define RTC_UF 0x10
+#define RTC_FEATURE_ALARM 0
+#define RTC_FEATURE_ALARM_RES_MINUTE 1
+#define RTC_FEATURE_NEED_WEEK_DAY 2
+#define RTC_FEATURE_CNT 3
#define RTC_MAX_FREQ 8192
#endif