configs/qemu_aarch64_sbsa_defconfig: update to Linux 5.15

Increase vfat partition size for qemu-aarch64-sbsa since it now
requires more than 32M. See "Disk full" [1].

[1] https://gitlab.com/kubu93/buildroot/-/jobs/1745752049

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

board/qemu/aarch64-sbsa/genimage.cfg

@@ -7,7 +7,7 @@ image efi-part.vfat {
       image = "Image"
     }
   }
-  size = 32M
+  size = 64M
 }
 
 image disk.img {

configs/qemu_aarch64_sbsa_defconfig

@@ -13,18 +13,19 @@ BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 # BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ROOTFS_EXT2_SIZE="128M"
 
 # Image
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/aarch64-sbsa/assemble-flash-images support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/qemu/aarch64-sbsa/genimage.cfg"
 
-# Linux headers same as kernel, a 5.10 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_10=y
+# Linux headers same as kernel
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
 
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.10.34"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15"
 BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y