[BOOT] Improve TODO comments

BOOT/ENVIRON/LIB/EFI/efiinit.c

@@ -206,6 +206,9 @@ Return Value:
     }
     BootDevice->Size = sizeof(BOOT_DEVICE);
 
+    //
+    // Memory map devices are treated as ramdisks.
+    //
     if (DevicePathType(EfiDevicePath) == HARDWARE_DEVICE_PATH && DevicePathSubType(EfiDevicePath) == HW_MEMMAP_DP) {
         MemmapNode = (MEMMAP_DEVICE_PATH *)EfiDevicePath;
         BlockDevice = &BootDevice->Block;
@@ -218,7 +221,7 @@ Return Value:
     }
 
     //
-    // TODO: Only media devices and ramdisks are currently supported.
+    // TODO: Support more devices than just HDD/CD-ROM and ramdisks.
     //
     DeviceNode = EfiInitpGetDeviceNode(EfiDevicePath);
     if (DevicePathType(DeviceNode) != MEDIA_DEVICE_PATH) {
@@ -547,7 +550,7 @@ Return Value:
 
     //
     // Convert the EFI file path into a boot file path option.
-    // TODO: UDP/PXE are not supported.
+    // TODO: Support UDP/PXE boot.
     //
     PrevOption = Option;
     Option = (PBOOT_APPLICATION_OPTION)((PUCHAR)&Entry->Options + OptionsSize);
@@ -561,7 +564,7 @@ Return Value:
     BufferRemaining -= Size;
 
     //
-    // TODO: Additional options in LoadOptions are not parsed.
+    // TODO: Parse additional options from LoadOptions.
     //
     PrevOption = Option;
     Option = (PBOOT_APPLICATION_OPTION)((PUCHAR)&Entry->Options + OptionsSize);

BOOT/ENVIRON/LIB/EFI/efimm.c

@@ -572,7 +572,7 @@ Return Value:
     }
 
     //
-    // TODO: Account for possible MDL changes due to EfiFreePages(EfiBuffer).
+    // TODO: Account for possible MDL changes due to freeing EfiBuffer.
     //
 
 exit: