riscv: defconfig: enable hugetlbfs option

Enabling hugetlbfs in the defconfigs to allow tuning KVM
guest performance using huge pages.
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

arch/riscv/configs/defconfig

@@ -108,6 +108,7 @@ CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V4=y
 CONFIG_NFS_V4_1=y

arch/riscv/configs/rv32_defconfig

@@ -100,6 +100,7 @@ CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V4=y
 CONFIG_NFS_V4_1=y