x86/platform/uv: Remove spaces from OEM IDs

Testing shows that trailing spaces caused problems with the OEM_ID and
the OEM_TABLE_ID.  One being that the OEM_ID would not string compare
correctly.  Another the OEM_ID and OEM_TABLE_ID would be concatenated
in the printout.  Remove any trailing spaces.

Fixes: 1e61f5a9 ("Add and decode Arch Type in UVsystab")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-3-mike.travis@hpe.com

arch/x86/kernel/apic/x2apic_uv_x.c

@@ -290,6 +290,9 @@ static void __init uv_stringify(int len, char *to, char *from)
 {
 	/* Relies on 'to' being NULL chars so result will be NULL terminated */
 	strncpy(to, from, len-1);
+
+	/* Trim trailing spaces */
+	(void)strim(to);
 }
 
 /* Find UV arch type entry in UVsystab */