drivers/block/systemace - fixed data type in "systemace_read" to match prototype in "block_dev_desc_t"

Currently we have "unsigned long blkcnt" which is fine with
CONFIG_SYS_64BIT_LBA undefined because "lbaint_t" is basically the same
"unsigned long".
If CONFIG_SYS_64BIT_LBA gets defined "lbaint_t" is defined as "unsigned
long long".

Even though not many embedded systems have CONFIG_SYS_64BIT_LBA defined
it's good to have types in function implementation that match exactly
with prototypes.

Signed-off-by: Alexey Brodkin <alexey.brodkin@gmail.com>

drivers/block/systemace.c

@@ -83,7 +83,7 @@ static u16 ace_readw(unsigned off)
 }
 
 static unsigned long systemace_read(int dev, unsigned long start,
-				    unsigned long blkcnt, void *buffer);
+					lbaint_t blkcnt, void *buffer);
 
 static block_dev_desc_t systemace_dev = { 0 };
 
@@ -149,7 +149,7 @@ block_dev_desc_t *systemace_get_dev(int dev)
  * number of blocks read. A zero return indicates an error.
  */
 static unsigned long systemace_read(int dev, unsigned long start,
-				    unsigned long blkcnt, void *buffer)
+					lbaint_t blkcnt, void *buffer)
 {
 	int retry;
 	unsigned blk_countdown;