imx: add i.MX8MQ SoC Revision and is_mx8m helper

Add i.MX8MQ SoC Revision
Add is_mx8m helper
The 7ULP is a dummy number, so use 0xEx.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: NStefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-imx/cpu.h

@@ -25,12 +25,14 @@
 #define MXC_CPU_MX6QP		0x69
 #define MXC_CPU_MX7S		0x71 /* dummy ID */
 #define MXC_CPU_MX7D		0x72
-#define MXC_CPU_MX7ULP		0x81 /* Temporally hard code */
+#define MXC_CPU_MX8MQ		0x82
+#define MXC_CPU_MX7ULP		0xE1 /* Temporally hard code */
 #define MXC_CPU_VF610		0xF6 /* dummy ID */
 
 #define MXC_SOC_MX6		0x60
 #define MXC_SOC_MX7		0x70
-#define MXC_SOC_MX7ULP		0x80 /* dummy */
+#define MXC_SOC_MX8M		0x80
+#define MXC_SOC_MX7ULP		0xE0 /* dummy */
 
 #define CHIP_REV_1_0            0x10
 #define CHIP_REV_1_1            0x11

arch/arm/include/asm/mach-imx/sys_proto.h

@@ -27,6 +27,7 @@
 
 #define is_mx6() (is_soc_type(MXC_SOC_MX6))
 #define is_mx7() (is_soc_type(MXC_SOC_MX7))
+#define is_mx8m() (is_soc_type(MXC_SOC_MX8M))
 
 #define is_mx6dqp() (is_cpu_type(MXC_CPU_MX6QP) || is_cpu_type(MXC_CPU_MX6DP))
 #define is_mx6dq() (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))