qca-ssdk: update for 6.12 compatibility

Update to current SSDK head for 6.12 compatibility.

We must disable warnings for missing declarations and prototypes since
whole SSDK is litered with them and actually fixing them is like doing
whack a mole.

Link: https://github.com/openwrt/openwrt/pull/18795
Signed-off-by: Robert Marko <robimarko@gmail.com>

package/kernel/qca-ssdk/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_URL:=https://github.com/openwrt/qca-ssdk.git
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_DATE:=2025-05-09
-PKG_SOURCE_VERSION:=4f7dacb232cd2df3e4867c9fcf9e4a08bfa92820
-PKG_MIRROR_HASH:=367ac0df54df379f9e8192256f14da3f94fe0797eba768ac671c70c774094804
+PKG_SOURCE_DATE:=2025-05-12
+PKG_SOURCE_VERSION:=709382c7aefbd07643db24edb514322f078c5181
+PKG_MIRROR_HASH:=9b2967b6e6fea45138fd09a7f40f03210edb66c661faed9ce4003e5301341611
 
 PKG_FLAGS:=nonshared
 PKG_BUILD_PARALLEL:=1
@@ -34,6 +34,12 @@ GCC_VERSION=$(shell echo "$(CONFIG_GCC_VERSION)" | sed 's/[^0-9.]*\([0-9.]*\).*/
 
 LNX_CONFIG_OPTS = LNX_MAKEOPTS='$(KERNEL_MAKEOPTS)' PRJ_PATH=$(PKG_BUILD_DIR) MODULE_TYPE=KSLIB modules
 
+EXTRA_CFLAGS:= \
+	-fno-stack-protector \
+	-Wno-missing-prototypes \
+	-Wno-missing-declarations \
+	-I$(STAGING_DIR)/usr/include
+
 MAKE_FLAGS+= \
 	TARGET_NAME=$(CONFIG_TARGET_NAME) \
 	TOOL_PATH=$(firstword $(TOOLCHAIN_BIN_DIRS)) \
@@ -43,7 +49,7 @@ MAKE_FLAGS+= \
 	ARCH=$(LINUX_KARCH) \
 	TARGET_SUFFIX=$(CONFIG_TARGET_SUFFIX) \
 	GCC_VERSION=$(GCC_VERSION) \
-	EXTRA_CFLAGS="-fno-stack-protector -I$(STAGING_DIR)/usr/include" \
+	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
 	SoC=$(CONFIG_TARGET_SUBTARGET) \
 	SHELL="$(BASH)" \
 	PTP_FEATURE=disable SWCONFIG_FEATURE=disable \