ARM: dts: Sync Amlogic G12A with Linux 5.3-rc1

Sync the Amlogic Meson G12A DT and Bindings file with the Linux 5.3-rc1
from the commit 5f9e832c1370 ("Linus 5.3-rc1").

Also remove the meson-g12a-u-boot.dtsi and meson-g12a-u200-u-boot.dtsi,
now conflicting with the main DT content.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Mark Kettenis <kettenis@openbsd.org>
diff --git a/include/dt-bindings/clock/axg-aoclkc.h b/include/dt-bindings/clock/axg-aoclkc.h
index 6195501..8ec4a26 100644
--- a/include/dt-bindings/clock/axg-aoclkc.h
+++ b/include/dt-bindings/clock/axg-aoclkc.h
@@ -21,6 +21,11 @@
 #define CLKID_AO_SAR_ADC_SEL	8
 #define CLKID_AO_SAR_ADC_DIV	9
 #define CLKID_AO_SAR_ADC_CLK	10
-#define CLKID_AO_ALT_XTAL	11
+#define CLKID_AO_CTS_OSCIN	11
+#define CLKID_AO_32K_PRE	12
+#define CLKID_AO_32K_DIV	13
+#define CLKID_AO_32K_SEL	14
+#define CLKID_AO_32K		15
+#define CLKID_AO_CTS_RTC_OSCIN	16
 
 #endif