Fix phantom DA PostGrow errors

Dynamic area PostGrow handlers aren't able to return errors, so the V
flag is likely undefined. Fix AreaGrow so that it ignores any V-set
condition returned by the call (especially since the CallPostGrow rapper
will have clobbered any error pointer).

Fixes issue reported on forums:
https://www.riscosopen.org/forum/forums/4/topics/14662

Version 6.34. Tagged as 'Kernel-6_34'

VersionASM

@@ -9,12 +9,12 @@
                         GBLS    Module_ApplicationDate
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
-Module_MajorVersion     SETS    "6.33"
-Module_Version          SETA    633
+Module_MajorVersion     SETS    "6.34"
+Module_Version          SETA    634
 Module_MinorVersion     SETS    ""
 Module_Date             SETS    "27 Feb 2020"
 Module_ApplicationDate  SETS    "27-Feb-20"
 Module_ComponentName    SETS    "Kernel"
-Module_FullVersion      SETS    "6.33"
-Module_HelpVersion      SETS    "6.33 (27 Feb 2020)"
+Module_FullVersion      SETS    "6.34"
+Module_HelpVersion      SETS    "6.34 (27 Feb 2020)"
                         END

VersionNum

-/* (6.33)
+/* (6.34)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  *
  */
-#define Module_MajorVersion_CMHG        6.33
+#define Module_MajorVersion_CMHG        6.34
 #define Module_MinorVersion_CMHG        
 #define Module_Date_CMHG                27 Feb 2020
 
-#define Module_MajorVersion             "6.33"
-#define Module_Version                  633
+#define Module_MajorVersion             "6.34"
+#define Module_Version                  634
 #define Module_MinorVersion             ""
 #define Module_Date                     "27 Feb 2020"
 
@@ -16,6 +16,6 @@
 
 #define Module_ComponentName            "Kernel"
 
-#define Module_FullVersion              "6.33"
-#define Module_HelpVersion              "6.33 (27 Feb 2020)"
-#define Module_LibraryVersionInfo       "6:33"
+#define Module_FullVersion              "6.34"
+#define Module_HelpVersion              "6.34 (27 Feb 2020)"
+#define Module_LibraryVersionInfo       "6:34"

s/ChangeDyn

@@ -5460,7 +5460,6 @@ AreaGrow ROUT
       ]
         MOV     r2, r3, LSR #12
         BL      CallPostGrow
-        BVS     %FT95
         B       %FT80
 
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