Revert "MAINTAINERS: add myself as reviewer of i.MX8M related patches"

This reverts commit 420193f87c as it
contains part of the changes (imx8m.c) that should belong to a different
patch.

MAINTAINERS

@@ -365,13 +365,6 @@ F:	tools/misc/xenhypfs.c
 F:	xen/common/hypfs.c
 F:	xen/include/xen/hypfs.h
 
-IMX8M SUPPORT
-R:	Wig Cheng <onlywig@gmail.com>
-F:	xen/arch/arm/arm64/debug-imx-uart.inc
-F:	xen/arch/arm/include/asm/imx-uart.h
-F:	xen/arch/arm/platforms/imx8m.c
-F:	xen/drivers/char/imx-uart.c
-
 IMX8QM/QXP SUPPORT
 R:	John Ernberg <john.ernberg@actia.se>
 F:	xen/arch/arm/platforms/imx8qm.c

xen/arch/arm/platforms/imx8m.c

@@ -111,8 +111,14 @@ static bool imx8m_smc(struct cpu_user_regs *regs)
          * NoC QoS priority setup.  Only i.MX8MQ issues this at boot;
          * i.MX8MP issues no NoC call, but the platform covers both.
          */
-        if ( subfunction_id != IMX_SIP_NOC_SF_PRIORITY )
+        switch ( subfunction_id )
+        {
+        case IMX_SIP_NOC_SF_PRIORITY:
+            break;
+
+        default:
             return false;
+        }
         break;
 
     default: