rtas_flash: fix blockCnt iteration

for (blockCnt = 0; blockCnt <= FLASHSIZE; blockCnt += FLASH_BLOCK_SIZE)
will iterate more than FLASHSIZE, thus causing overwriting. Change <= to
< to limit block count correctly.

Signed-off-by: Minsoo Choo <minsoo@minsoo.io>
Message-ID: <20260520220212.525-3-minsoo@minsoo.io>
Signed-off-by: Thomas Huth <th.huth@posteo.eu>

board-js2x/rtas/rtas_flash.c

diff --git a/board-js2x/rtas/rtas_flash.c b/board-js2x/rtas/rtas_flash.c
index aa61603..0234087 100644
--- a/board-js2x/rtas/rtas_flash.c
+++ b/board-js2x/rtas/rtas_flash.c
@@ -243,7 +243,7 @@
 	}
 	printf("\r\nErasing Flash: 0x        ");
 
-	for (blockCnt = 0; blockCnt <= FLASHSIZE; blockCnt += FLASH_BLOCK_SIZE) {
+	for (blockCnt = 0; blockCnt < FLASHSIZE; blockCnt += FLASH_BLOCK_SIZE) {
 		print_block(blockCnt);
 		erase_flash_block(blockCnt);
 	}
@@ -251,7 +251,7 @@
 	progress = FLASHSIZE / 38;
 	print_writing();
 
-	for (blockCnt = 0; blockCnt <= FLASHSIZE; blockCnt += BUFSIZE) {
+	for (blockCnt = 0; blockCnt < FLASHSIZE; blockCnt += BUFSIZE) {
 		uint64_t *srcPtr = (uint64_t *)(flash + blockCnt);
 		uint64_t *destPtr = (uint64_t *)manage_flash_buffer;
 		uint64_t cnt = BUFSIZE / 8;