riscv: rename CPU_RISCV_32/64 to match architecture names ARCH_RV32I/64I

RISC-V defines the base integer instruction sets as RV32I and RV64I.
Rename CPU_RISCV_32 and CPU_RISCV_64 to ARCH_RV32I and ARCH_RV64I to
match this convention.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
index 5838eb3..d06974c 100644
--- a/include/config_distro_bootcmd.h
+++ b/include/config_distro_bootcmd.h
@@ -99,9 +99,9 @@
 #define BOOTEFI_NAME "bootia32.efi"
 #elif defined(CONFIG_X86_RUN_64BIT)
 #define BOOTEFI_NAME "bootx64.efi"
-#elif defined(CONFIG_CPU_RISCV_32)
+#elif defined(CONFIG_ARCH_RV32I)
 #define BOOTEFI_NAME "bootriscv32.efi"
-#elif defined(CONFIG_CPU_RISCV_64)
+#elif defined(CONFIG_ARCH_RV64I)
 #define BOOTEFI_NAME "bootriscv64.efi"
 #endif
 #endif
@@ -257,10 +257,10 @@
 #elif defined(__i386__)
 #define BOOTENV_EFI_PXE_ARCH "0x6"
 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00006:UNDI:003000"
-#elif defined(CONFIG_CPU_RISCV_32) || ((defined(__riscv) && __riscv_xlen == 32))
+#elif defined(CONFIG_ARCH_RV32I) || ((defined(__riscv) && __riscv_xlen == 32))
 #define BOOTENV_EFI_PXE_ARCH "0x19"
 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00025:UNDI:003000"
-#elif defined(CONFIG_CPU_RISCV_64) || ((defined(__riscv) && __riscv_xlen == 64))
+#elif defined(CONFIG_ARCH_RV64I) || ((defined(__riscv) && __riscv_xlen == 64))
 #define BOOTENV_EFI_PXE_ARCH "0x1b"
 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00027:UNDI:003000"
 #elif defined(CONFIG_SANDBOX)