ti: k3: common: Program A53 arch timer frequency

Provide K3_TIMER_FREQUENCY for the platform configuration if the GTC
clock is selected statically and override option if the platform has a
different configuration.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benjamin Fair <b-fair@ti.com>
diff --git a/plat/ti/k3/include/platform_def.h b/plat/ti/k3/include/platform_def.h
index 7b38be5..a82bb36 100644
--- a/plat/ti/k3/include/platform_def.h
+++ b/plat/ti/k3/include/platform_def.h
@@ -143,4 +143,9 @@
 #define CRASH_CONSOLE_CLK K3_USART_CLK_SPEED
 #define CRASH_CONSOLE_BAUD_RATE K3_USART_BAUD
 
+/* Timer frequency */
+#ifndef SYS_COUNTER_FREQ_IN_TICKS
+#define SYS_COUNTER_FREQ_IN_TICKS 200000000
+#endif
+
 #endif /* __PLATFORM_DEF_H__ */