Revert PRs that break ROCm builds (#1781)

Fixes SWDEV-218626 and SWDEV-218629

Changes:
- Revert "`static inline` in a header, just like excess sugar in a diet, causes bloat (#1692)"
   This reverts commit b7803eb0c6.
- Revert "Fix rocFFT build failure (#1777)"
   This reverts commit 9c8c3df294.

[ROCm/hip commit: 00bd5d1cec]

projects/hip/src/hip_hcc_internal.h

@@ -97,13 +97,13 @@ class TidInfo {
     TidInfo();
 
     int tid() const { return _shortTid; };
-    pid_t pid() const { return _pid; };
+    pid_t pid() const { return _pid; }; 
     uint64_t incApiSeqNum() { return ++_apiSeqNum; };
     uint64_t apiSeqNum() const { return _apiSeqNum; };
 
    private:
     int _shortTid;
-    pid_t _pid;
+    pid_t _pid; 
 
     // monotonically increasing API sequence number for this threa.
     uint64_t _apiSeqNum;
@@ -280,7 +280,7 @@ static const DbName dbName[] = {
 #endif
 
 
-inline uint64_t getTicks() { return hc::get_system_ticks(); }
+static inline uint64_t getTicks() { return hc::get_system_ticks(); }
 
 //---
 extern uint64_t recordApiTrace(TlsData *tls, std::string* fullStr, const std::string& apiStr);
@@ -796,7 +796,7 @@ class ihipDevice_t {
 
     // TODO - report this through device properties, base on HCC API call.
     int _isLargeBar;
-
+   
     // Node id reported by kfd for this device
     uint32_t _driver_node_id;
 
@@ -1045,7 +1045,7 @@ struct mg_info {
 //  setDevice first.
 //  - hipDeviceReset destroys the primary context for device?
 //  - Then context is created again for next usage.
-inline ihipCtx_t* iihipGetTlsDefaultCtx(TlsData* tls) {
+static inline ihipCtx_t* iihipGetTlsDefaultCtx(TlsData* tls) {
     // Per-thread initialization of the TLS:
     if ((tls->defaultCtx == nullptr) && (g_deviceCnt > 0)) {
         tls->defaultCtx = ihipGetPrimaryCtx(0);