Update 'take a while' string for Plugin VM installer

Bug: b/170414561
Change-Id: I365f19d33a671db88f5275f68d1a720b24159aa7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2461907Reviewed-by: Jason Lin <lxj@google.com>
Commit-Queue: Jason Lin <lxj@google.com>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Auto-Submit: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815376}

chrome/app/chromeos_strings.grdp

@@ -5390,7 +5390,7 @@
     Connect to the internet and try again
   </message>
   <message name="IDS_PLUGIN_VM_INSTALLER_START_DOWNLOADING_MESSAGE" desc="Text of the Plugin VM installer that informs the user that setup may take a while.">
-    This may take awhile
+    This may take a while
   </message>
   <message name="IDS_PLUGIN_VM_INSTALLER_DOWNLOADING_MESSAGE" desc="Text of the Plugin VM installer while downloading the VM.">
     Downloading the virtual machine

chrome/app/chromeos_strings_grdp/IDS_PLUGIN_VM_INSTALLER_START_DOWNLOADING_MESSAGE.png.sha1

-fbf9fe15c79321a16168a1ca22f77e09ef5e2e5d
\ No newline at end of file
+b76a11c4e05046d75c183b9d2928a6fc7302bb91
\ No newline at end of file