tree: Retype variable `laptop_ok` with bool

Use the bool type instead of an integer for the variable `laptop_ok`,
since this represents its purpose much better.

Signed-off-by: Felix Singer <felixsinger@posteo.net>
Change-Id: I5d9fc3516bc2d29f11b056e35b3e5e324ce93423
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/66891
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71485
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/internal.c b/internal.c
index e630105..ca43550 100644
--- a/internal.c
+++ b/internal.c
@@ -119,7 +119,7 @@
 #endif
 
 int is_laptop = 0;
-int laptop_ok = 0;
+bool laptop_ok = false;
 
 static void internal_chip_writeb(const struct flashctx *flash, uint8_t val,
 				 chipaddr addr);