Reformat imports to a consistent style for imports

rustfmt.toml configuration:
  imports_granularity = "One"
  group_imports = "One"

sdk/program/src/bpf_loader_upgradeable.rs

@@ -8,13 +8,15 @@
 //! upgradeable programs which still have a functioning authority.  For more
 //! information refer to `loader_upgradeable_instruction.rs`
 
-use crate::{
-    instruction::{AccountMeta, Instruction, InstructionError},
-    loader_upgradeable_instruction::UpgradeableLoaderInstruction,
-    pubkey::Pubkey,
-    system_instruction, sysvar,
+use {
+    crate::{
+        instruction::{AccountMeta, Instruction, InstructionError},
+        loader_upgradeable_instruction::UpgradeableLoaderInstruction,
+        pubkey::Pubkey,
+        system_instruction, sysvar,
+    },
+    bincode::serialized_size,
 };
-use bincode::serialized_size;
 
 crate::declare_id!("BPFLoaderUpgradeab1e11111111111111111111111");