dev: pm8xxx: Add support for spmi read/write APIs

Add support for spmi read, write APIs for weak battery charging support

Change-Id: I71245af744910f76bdc4b6b364178499c8c2c268
diff --git a/dev/pmic/pm8x41/include/pm8x41_hw.h b/dev/pmic/pm8x41/include/pm8x41_hw.h
index 0a8e2e8..9cc4e78 100644
--- a/dev/pmic/pm8x41/include/pm8x41_hw.h
+++ b/dev/pmic/pm8x41/include/pm8x41_hw.h
@@ -29,6 +29,10 @@
 #ifndef _PM8x41_HW_H_
 #define _PM8x41_HW_H_
 
+#include <stdint.h>
+#include <sys/types.h>
+
+
 /* SMBB Registers */
 #define SMBB_MISC_BOOT_DONE                   0x1642