imx7ulp: cleanup get_imx_type

There is only one SoC and no external user of get_imx_type for i.MX7ULP,
so directly embed the string in print_cpuinfo and drop get_imx_type().

Signed-off-by: Peng Fan <peng.fan@nxp.com>

arch/arm/mach-imx/mx7ulp/soc.c

@@ -259,11 +259,6 @@ void reset_cpu(void)
 #endif
 
 #if defined(CONFIG_DISPLAY_CPUINFO)
-const char *get_imx_type(u32 imxtype)
-{
-	return "7ULP";
-}
-
 int print_cpuinfo(void)
 {
 	u32 cpurev;
@@ -271,8 +266,7 @@ int print_cpuinfo(void)
 
 	cpurev = get_cpu_rev();
 
-	printf("CPU:   Freescale i.MX%s rev%d.%d at %d MHz\n",
-	       get_imx_type((cpurev & 0xFF000) >> 12),
+	printf("CPU:   Freescale i.MX7ULP rev%d.%d at %d MHz\n",
 	       (cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0,
 	       mxc_get_clock(MXC_ARM_CLK) / 1000000);