sb/intel/i82801gx: Use boolean for ide_enable_{primary,secondary}

Change-Id: Ia71692ecf74fd8921eeafabac9a4cb862da90e81
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70114
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/mainboard/asus/p5gc-mx/devicetree.cb b/src/mainboard/asus/p5gc-mx/devicetree.cb
index ad9b961..a9cad93 100644
--- a/src/mainboard/asus/p5gc-mx/devicetree.cb
+++ b/src/mainboard/asus/p5gc-mx/devicetree.cb
@@ -38,8 +38,8 @@
 
 			register "gpe0_en" = "0"
 
-			register "ide_enable_primary" = "0x1"
-			register "ide_enable_secondary" = "0x0"
+			register "ide_enable_primary" = "true"
+			register "ide_enable_secondary" = "false"
 
 			register "p_cnt_throttling_supported" = "0"