xen/arm: Correct the coding style of get_cycles

It seems the arm inline function get_cycles has used 8 spaces for
line indent since 2012. This patch correct them to 4 spaces and
remove extra space between function name and bracket.

Signed-off-by: Wei Chen <wei.chen@arm.com>
Acked-by: Julien Grall <jgrall@amazon.com>

xen/include/asm-arm/time.h

@@ -11,29 +11,29 @@
 
 typedef uint64_t cycles_t;
 
-static inline cycles_t get_cycles (void)
+static inline cycles_t get_cycles(void)
 {
-        isb();
+    isb();
+    /*
+     * ARM_WORKAROUND_858921: Cortex-A73 (all versions) counter read
+     * can return a wrong value when the counter crosses a 32bit boundary.
+     */
+    if ( !check_workaround_858921() )
+        return READ_SYSREG64(CNTPCT_EL0);
+    else
+    {
         /*
-         * ARM_WORKAROUND_858921: Cortex-A73 (all versions) counter read
-         * can return a wrong value when the counter crosses a 32bit boundary.
+         * A recommended workaround for erratum 858921 is to:
+         *  1- Read twice CNTPCT.
+         *  2- Compare bit[32] of the two read values.
+         *      - If bit[32] is different, keep the old value.
+         *      - If bit[32] is the same, keep the new value.
          */
-        if ( !check_workaround_858921() )
-            return READ_SYSREG64(CNTPCT_EL0);
-        else
-        {
-            /*
-             * A recommended workaround for erratum 858921 is to:
-             *  1- Read twice CNTPCT.
-             *  2- Compare bit[32] of the two read values.
-             *      - If bit[32] is different, keep the old value.
-             *      - If bit[32] is the same, keep the new value.
-             */
-            cycles_t old, new;
-            old = READ_SYSREG64(CNTPCT_EL0);
-            new = READ_SYSREG64(CNTPCT_EL0);
-            return (((old ^ new) >> 32) & 1) ? old : new;
-        }
+        cycles_t old, new;
+        old = READ_SYSREG64(CNTPCT_EL0);
+        new = READ_SYSREG64(CNTPCT_EL0);
+        return (((old ^ new) >> 32) & 1) ? old : new;
+    }
 }
 
 /* List of timer's IRQ */