Add missing prototypes for libc/rand.c functions (trivial).

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3225 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

payloads/libpayload/include/libpayload.h

@@ -132,6 +132,11 @@ int vsprintf(char *str, const char *fmt, va_list ap);
 int printf(const char *fmt, ...);
 int vprintf(const char *fmt, va_list ap);
 
+/* libc/rand.c */
+int rand_r(unsigned int *seed);
+int rand(void);
+void srand(unsigned int seed);
+
 /* libc/sha1.c */
 #define SHA1_BLOCK_LENGTH	64
 #define SHA1_DIGEST_LENGTH	20