power: fix missing header includes

The rte_power_guest_channel.h file did not include its dependent
headers, so add them.

Fixes: 5f443cc0f905 ("power: create guest channel public header file")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

lib/librte_power/rte_power_guest_channel.h

@@ -4,6 +4,12 @@
 #ifndef RTE_POWER_GUEST_CHANNEL_H
 #define RTE_POWER_GUEST_CHANNEL_H
 
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include <rte_compat.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif