stand/ficl 64-bit compatibility

Currently, the only thing that prevents a functioning 64-bit FICL build is
a few integer types that were intended to be fixed-width.

Changing them to C99 integer types allows building a functioning 64-bit
FICL.

While this isn't applicable to the default settings of any in-tree loaders,
it is necessary for a future Petitboot loader, due to the requirement that
it be compiled as a 64-bit program.

Reviewed by:	tsoome, imp (earlier revision)
Sponsored by:	Tag1 Consulting, Inc.
Differential Revision:	https://reviews.freebsd.org/D26364

stand/ficl/ficl.h

@@ -249,7 +249,7 @@ typedef struct ficl_system_info FICL_SYSTEM_INFO;
 ** complement of false... that unifies logical and bitwise operations
 ** nicely.
 */
-#define FICL_TRUE  ((unsigned long)~(0L))
+#define FICL_TRUE  ((FICL_UNS)~(0LL))
 #define FICL_FALSE (0)
 #define FICL_BOOL(x) ((x) ? FICL_TRUE : FICL_FALSE)
 

stand/ficl/powerpc/sysdep.h

@@ -79,15 +79,15 @@
 ** System dependent data type declarations...
 */
 #if !defined INT32
-#define INT32 int
+#define INT32 int32_t
 #endif
 
 #if !defined UNS32
-#define UNS32 unsigned int
+#define UNS32 uint32_t
 #endif
 
 #if !defined UNS16
-#define UNS16 unsigned short
+#define UNS16 uint16_t
 #endif
 
 #if !defined UNS8
@@ -367,6 +367,9 @@ typedef struct
 */
 #if !defined FICL_ALIGN
 #define FICL_ALIGN 2
+#endif
+
+#if !defined FICL_ALIGN_ADD
 #define FICL_ALIGN_ADD ((1 << FICL_ALIGN) - 1)
 #endif
 

stand/powerpc/ofw/main.c

@@ -63,7 +63,7 @@ init_heap(void)
 {
 	bzero(heap, HEAP_SIZE);
 
-	setheap(heap, (void *)((int)heap + HEAP_SIZE));
+	setheap(heap, (void *)((uintptr_t)heap + HEAP_SIZE));
 }
 
 uint64_t