VSB changes for diab toolchain and customer BSP (#37)

Co-authored-by: neelimap <neelimaps@neominds.in>
Reviewed-on: http://13.234.246.121:3000/Neominds/ossl35vx69/pulls/37
Co-authored-by: Neelima P S <neelima.ps@neominds.in>
Co-committed-by: Neelima P S <neelima.ps@neominds.in>

vxworks-6.9/target/src/os/security/secCrypto/src/secSecretLib.c

@@ -77,6 +77,9 @@ SEE ALSO
 #include <sysLib.h>
 
 /* typedefs */
+#ifndef __SIZE_TYPE
+#define __SIZE_TYPE long unsigned int
+#endif
 typedef __SIZE_TYPE__ rsize_t;   
 typedef int errno_t;