misc: Fix coding style for enum's opening braces

The systemc dir was not included in this fix.

First it was identified that there were only occurrences
at 0, 1, and 2 levels of indentation (and 2 of 2 spaces,
1 of 3 spaces and 2 of 12 spaces), using:

    grep -nrE --exclude-dir=systemc \
        "^ *enum [A-Za-z].* {$" src/

Then the following commands were run to replace:

    <indent level>enum X ... {

by:

    <indent level>enum X ...
    <indent level>{

Level 0:
    grep -nrl --exclude-dir=systemc \
        "^enum [A-Za-z].* {$" src/ | \
        xargs sed -Ei \
        's/^enum ([A-Za-z].*) \{$/enum \1\n\{/g'

Level 1:
    grep -nrl --exclude-dir=systemc \
        "^    enum [A-Za-z].* {$" src/ | \
        xargs sed -Ei \
        's/^    enum ([A-Za-z].*) \{$/    enum \1\n    \{/g'

and so on.

Change-Id: Ib186cf379049098ceaec20dfe4d1edcedd5f940d
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/43326
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/gpu-compute/gpu_command_processor.hh

@@ -65,7 +65,8 @@ class GPUCommandProcessor : public HSADevice
     void setShader(Shader *shader);
     Shader* shader();
 
-    enum AgentCmd {
+    enum AgentCmd
+    {
       Nop = 0,
       Steal = 1
     };

src/gpu-compute/misc.hh

@@ -47,7 +47,8 @@ typedef std::bitset<std::numeric_limits<unsigned long long>::digits>
     VectorMask;
 typedef std::shared_ptr<GPUDynInst> GPUDynInstPtr;
 
-enum InstMemoryHop : int {
+enum InstMemoryHop : int
+{
     Initiate = 0,
     CoalsrSend = 1,
     CoalsrRecv = 2,
@@ -56,7 +57,8 @@ enum InstMemoryHop : int {
     InstMemoryHopMax = 5
 };
 
-enum BlockMemoryHop : int {
+enum BlockMemoryHop : int
+{
     BlockSend = 0,
     BlockRecv = 1
 };

src/gpu-compute/schedule_stage.hh

@@ -70,7 +70,8 @@ class ScheduleStage
 
     // Stats related variables and methods
     const std::string& name() const { return _name; }
-    enum SchNonRdyType {
+    enum SchNonRdyType
+    {
         SCH_SCALAR_ALU_NRDY,
         SCH_VECTOR_ALU_NRDY,
         SCH_VECTOR_MEM_ISSUE_NRDY,
@@ -92,13 +93,15 @@ class ScheduleStage
         SCH_RDY,
         SCH_NRDY_CONDITIONS
     };
-    enum schopdnonrdytype_e {
+    enum schopdnonrdytype_e
+    {
         SCH_VRF_OPD_NRDY,
         SCH_SRF_OPD_NRDY,
         SCH_RF_OPD_NRDY,
         SCH_RF_OPD_NRDY_CONDITIONS
     };
-    enum schrfaccessnonrdytype_e {
+    enum schrfaccessnonrdytype_e
+    {
         SCH_VRF_RD_ACCESS_NRDY,
         SCH_VRF_WR_ACCESS_NRDY,
         SCH_SRF_RD_ACCESS_NRDY,

src/gpu-compute/scoreboard_check_stage.hh

@@ -60,7 +60,8 @@ struct ComputeUnitParams;
 class ScoreboardCheckStage
 {
   public:
-    enum nonrdytype_e {
+    enum nonrdytype_e
+    {
         NRDY_ILLEGAL,
         NRDY_WF_STOP,
         NRDY_IB_EMPTY,

src/gpu-compute/wavefront.hh

@@ -59,7 +59,8 @@
 class Wavefront : public SimObject
 {
   public:
-    enum status_e {
+    enum status_e
+    {
         // wavefront is stalled
         S_STOPPED,
         // wavefront is returning from a kernel