x86/platform/uv: Remove vestigial mention of UV1 platform from bios header

Remove UV1 reference as UV1 is not longer supported by HPE.
Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200713212955.435951508@hpe.com

arch/x86/include/asm/uv/bios.h

@@ -72,7 +72,7 @@ struct uv_gam_range_entry {
 };
 
 #define	UV_SYSTAB_SIG			"UVST"
-#define	UV_SYSTAB_VERSION_1		1	/* UV1/2/3 BIOS version */
+#define	UV_SYSTAB_VERSION_1		1	/* UV2/3 BIOS version */
 #define	UV_SYSTAB_VERSION_UV4		0x400	/* UV4 BIOS base version */
 #define	UV_SYSTAB_VERSION_UV4_1		0x401	/* + gpa_shift */
 #define	UV_SYSTAB_VERSION_UV4_2		0x402	/* + TYPE_NVRAM/WINDOW/MBOX */